science-help

[sly pollen]

1 min pls

[thorny gyro]

Oki

[sly pollen]

https://es.wikipedia.org/wiki/Estequiometría

this is one of the subjets, idk how to search the article in english

the other are the laws of gases, like gay lusaac and that stuff

intermolecular forces also

and thats it

[thorny gyro]

Stoichiometry?

For the first

[sly pollen]

easy word... indeed xd

lemme verify if its the same stuff

well, it is

[thorny gyro]

https://youtu.be/7Cfq0ilw7ps

He explains it well

[sly pollen]

thx a lot!

[thorny gyro]

Welcome! For intermolecular forces I guess y’all would have different vocabulary for the names idk if it I’ll confuse u

https://youtu.be/QdwzMPwPA3I

[sly pollen]

it is kinda the same stuff

thanks a lot for the videos

[thorny gyro]

Welcome

He has videos about laws of gases too u can check em out

He’s a life savior😩✨

[sly pollen]

yeah i will!!

i need to study until 4am so i can sleep a bit and then do the exam

[thorny gyro]

Good luck u can do ittt

[sly pollen]

thx ❤️

[viscid nest]

hey guys could someone help me with this question please?

i think i got it now 😅

[sly pollen]

xd

[viscid nest]

its v^2 = u^2 + 2gh right

i think

[sly pollen]

idk what u is supposed to mean, sorry

[viscid nest]

it is initial velocity

which is probably 0

[sly pollen]

yeah, probably

[viscid nest]

man the english on this problem is

thank you btw @sly pollen

[thorny gyro]

What’s the final answer?

[viscid nest]

i think it is 500 meters

[thorny gyro]

Oki thx cause I am studying mechanics rn and felt like doing it :3

[viscid nest]

oh ok cool

[thorny gyro]

But ah man I’m so crappy in mechanics 😭

[viscid nest]

hahahaa sam

im not very good

[thorny gyro]

I found 509m but there is a problem with the signs😭

[sly pollen]

np, i did nothing xd

[stray umbra]

How does the stored energy increases on increasing the distance ( seperation)

U is inversely proportional to r right ? So how's this possible'?

Or someone pls explain the answer in baby works . I AM STUCK 😭

[thorny gyro]

they're opposite charges.

pE = k (q1)(q2)/r^2

but since they are opposite charges, one of the two charges will be negetive.

so

pE = - kq1q2/r^2

now see, if you increase r, pE will become less and less -ve(will approach 0).

So, pE will increase with increasing r

[static forge]

The inheritance from the given traits of the following family tree can be said to be absolutely recessive?

i cant solve this i think d but correct answer is b

[tired radish]

When two organisms can interbreed and produce fertile offspring, then they both belong to a single species.

[thorny gyro]

Hey, please don't ask exam problems here.

[static forge]

always true

[tired radish]

nope this aint exam

[thorny gyro]

seems like one

[tired radish]

my school always use gforms when answering solving probs

[static forge]

just a simple question

[tired radish]

i wish i can write them

[prime junco]

Still need help ?

[static forge]

yeah @prime junco

[thorny gyro]

Always true, bc when two different species give an offspring, it would be sterile.

[static forge]

yeah like horse and donkey are different species, their sons are barren while mule

[thorny gyro]

Kinda forgot the answer cause I did biology last semester, but isn’t it D?(colored means that they have the disease, the parents would be both heterezygotes so their child might end up with aa genes which means recessive)

And both their children are aa(recesssive) @static forge

[thorny gyro]

Yup

[prime junco]

From D, you cannot really answer cause of the fact that the parent could be a-a- or a-a+ (a- is the disease), in this case a-a+ and a+ a+ parent will give you a+a+ children and a-a+ (disease) children and here you got a a- > a+

[prime junco]

A) It could be dominant one parent could be a+a+ and the other could be a+a-, with a- > a+
B) is the correct answer because both parents are " normal " while one of their children isn't (a-a-), which mean parents are both a+a- and the children is a-a- with a+ > a-
C)If both parent are (a-), but none of their childrens is, isn't absolutely recessive
D) Same as A

correct me if i am wrong, i didn't do genetics from a while

[thorny gyro]

Oh yeahhh

Ur right

[static forge]

the parent cannot a-a- bc shes not pink. sick people are shown in pink.

[thorny gyro]

The parents would both be carriers

[cerulean elbow]

Please help me with this Question

[prime junco]

Children can be a+a-

in this case

white parent is a+a+

[thorny gyro]

Idk I don’t use the signs plus and minus in biology so it’s confusing lmao
We use A=dominant
a=recessive(decease)
The parents would both be Aa
So their children are both aa bc they are sick if they had an A they wouldn’t be sick since it’s dominant

[static forge]

no a-a-

[prime junco]

How can you say ?

[prime junco]

From what i see, you can't

[thorny gyro]

Umm yeah u can

[thorny gyro]

This seems right to me

[static forge]

the mother is heterozygous, the disease does not occur

[thorny gyro]

a+ is dominant, a- is recessive(disease). the others are all sick which means they don’t have a dominant gene so they have a-a-

[prime junco]

Yeah i know, but you can not said " D is right " cause of the fact that both parent could me homo, in this case, a- > a+ and a- is dominant

[static forge]

cannot homo

dad has diseas

[prime junco]

a+a+ and a-a-

[static forge]

bc he is pink a-a-

[prime junco]

Are both homo

[static forge]

a+a- not diseas

[prime junco]

It could be if a- is dominant

[static forge]

but boys has diseas

its means a-a-

[thorny gyro]

The mother can’t be a+a+ bc the children are a-a- and they take a gene from her

[static forge]

yeah

[prime junco]

Children in this case are a+a-,

[thorny gyro]

So the mother is hetero

[static forge]

oh wait

[thorny gyro]

👁️👄👁️

[prime junco]

and if the a- is dominant, so the children are sick

[static forge]

i got it i guess

wait a sec

[prime junco]

Only B is 100% a+>a-

D is not

[static forge]

he is right

im an idiot

[thorny gyro]

👀
👄

Man I don’t get it

[static forge]

It is also true when we organize it by the raid gene

[thorny gyro]

Which is dominant gene a+ or a-

[static forge]

a+ means sick

[static forge]

a+

[thorny gyro]

Oh yeah

[static forge]

there may be a dominant inherited gene

[thorny gyro]

OH OKAY

[static forge]

we are an idiot

[thorny gyro]

LMAOO

Yeah we are

[static forge]

@prime junco thanks man

[thorny gyro]

Thank youuu :3

[prime junco]

In this case, the pink one is probably a+a+ i guess

[prime junco]

My english is bad, it's all on me

[static forge]

np

my english bad too

i use translate

[thorny gyro]

No idea how to do it sorry :/

[prime junco]

Maybe it's clearer

[thorny gyro]

Yeah for D there are two possibilities I got it lmao it’s tricky tho 😭

Tysm :3!appreciate it

[static forge]

yeahh thanksss

[cerulean elbow]

Ok

[shell drum]

There you go

[shell drum]

substitute the dimensions of A D and V in terms of M L and T and equate it with force's dimension in terms od M L and T . and wherever x comes , equate the powers on both sides . you'll get x=2

[cerulean elbow]

Thank you for the answer @shell drum 👍

[shell drum]

hope it was clear. 11th grade physics ?

[cerulean elbow]

Yes @shell drum

Just came to class 11 after class 10 board cancellation.(CBSE)

[shell drum]

alright. good luck 🙂

[fading mango]

Hey guys can anyone help out? This seems like a relatively simple dimensional analysis problem but by my workings A, C, and D are all correct, however the book says only A

Ok so:

σ = [M / T²]
λ = [L]
ρ = [M / L³]
g = [L / T²]

And v² = [L² / T²]

Right?

Yeah, using this, the LHS and RHS are both [L² / T²] for A, C and D

What am I doing wrong?

[thorny gyro]

I tried out the question and yep your answer is right

A, C and D are correct

there might be some misprint in the ans key

[viral sorrel]

isn't sigma mass/area?

[thorny gyro]

surface tension is force/length

...

[viral sorrel]

oh my bad, i'm not native so some terms are not known to me

just assumed it was something like pressure

[thorny gyro]

ohh np

[viral sorrel]

ok so D is not correct because 1/2pi is adimensional and the other term isn't, so you can't sum them

[thorny gyro]

hmm it's a dimensions question and those r constant values having no dimensions but yea maybe we need to find the most optimal formula

[viral sorrel]

A and C are correct if you just look at the dimensions, probably it's A bcause C doesn't take in surface tension and density

[thorny gyro]

yep you've got a point

@fading mango I hope that helps

[fading mango]

Nah I just realised D isn't right either cuz it has a dimensionless term being added to a term with dimensions, making it non-homogenous

[viral sorrel]

yep

[fading mango]

But that still doesn't explain why C is not a valid answer

[fading mango]

Yep

[thorny gyro]

ohh...I shall note that down for future reference

[viral sorrel]

this is my guess

[fading mango]

But in dimensional analysis you're not supposed to assume the involvement of terms unless derived right?

So why A over C?

[thorny gyro]

but we also can't ignore all the terms given

we need to find the relation with all the terms

[fading mango]

True, so technically A and C are both valid answers for the question

[thorny gyro]

yes, with heavy preference over A hahaha

[viral sorrel]

i still think A is correct because lambda g/2pi is something very ambiguous

[thorny gyro]

yep PhysStudent got some great points heh

[viral sorrel]

i'd say this isn't a great question, because if you don't know anything about waves and their velocity you can't really say anything about it

but if you do, A makes more sense

[fading mango]

We don't have to take all terms into account. For example when we are taught derivation of formulas through dimensional analysis we usually do the formula for frequency of a pendulum and the teacher asks us to include mass, even though in the end we realised the exponent of mass is 1 making it a non factor in determining frequency. Similarly, just because surface tension and density are given doesn't necessarily mean they determine velocity of a wave

[thorny gyro]

ah ok but it's a mcq so ig we need to find the most suitable ans

[fading mango]

Hmm yeah I suppose they expect us to use our knowledge in waves as well to answer this... Lambda g/2π does seem to vague

I just wanna be sure though, cuz this exam has negative marking

Wanna avoid taking chances

Thanks for your inputs though @viral sorrel and @thorny gyro !!

Really helped out

[viral sorrel]

yikes

[thorny gyro]

You're welcome!

[viral sorrel]

np 😉

[thorny gyro]

All the best for ur exam! (maybe try asking ur teacher for their viewpoints)

[fading mango]

I mean these are practice problems so no stress, but I'm practicing to try and be as confident about my answers as possible before giving them in

[fading mango]

Thanks! It's actually a competitive so I don't have a teacher for this stuff, but I can ask my school teacher ig

[thorny gyro]

Ohh I see

[cerulean elbow]

You can join to some platform know?
There Vedantu/Unacademy/Byjus/Topper,etc,...

[cerulean elbow]

Can anyone explain this

[willow lion]

can Ionization of strong acids and bases only occur in water?

disassociation

[blissful parcel]

No, it can occur in any other polar protic solvent

[willow lion]

alright thanks

[willow lion]

Relative formula mass refers to the molar mass of the ionic compound correct?

[fading mango]

I'd rather not join coaching. I feel like when I'm learning myself I push myself more and my understanding is deeper than if someone spoonfeeds the concepts to me. It's harder, yes, but I think in the long run it will do me good too

[fading mango]

If you just look up the parallelogram/triangle law of vectors you should get a reasonably good explanation. Usually any 11th grade physics textbook would have an explanation since it's essentially the basis of vector notation and addition

[prime river]

Hey anybody interested in studying together?

Dm me

Am a medical student

[cerulean elbow]

It's true but we have 2 years for JEE MAIN'S so we have to study for boards and JEE MAIN'S
However my college provide both two in one (Sri Chaitanya College)

[cerulean elbow]

Is this Resolution of Vector?

[teal bloom]

Can someone explain the concept of hybridization and promotion of electrons within an atom. I'm having trouble understanding the reason for some atoms to hybridize their orbitals when they form molecules

[fading mango]

Ah well I'm not giving the JEE, I'm writing the KVPY. Also I am in 12th grade so I only have about 6 months left so not much point in joining coaching this late

[thorny gyro]

if theres a question asking me to find the torque
and then the force acts in the middle
so how do ik where the rod is pivoted?

im in class 10 icse

[fading mango]

Chaitanya is hardcore though from what I've heard... You'll probably do well

[cerulean elbow]

Where are you from?

[thorny gyro]

hey can someone help?

[cerulean elbow]

Sorry i do know about this

[fading mango]

Well you do use resolution here, but it's vector addition that you need to look up

[cerulean elbow]

Ok

[fading mango]

Currently living in delhi but I have lived and studied across India

[cerulean elbow]

Ok

[fading mango]

Well torque is force*perpendicular distance right? If perpendicular distance = 0, then torque = 0

[thorny gyro]

ye but i just wanna know how to know where a rod is pivoted

[fading mango]

I assume when you say "middle" you mean the force is acting on the axis of rotation itself

[fading mango]

Could you send a diagram? I think I am misunderstanding your question

[cerulean elbow]

Hey @fading mango could please chat privately

[copper mural]

Hey
Can anyone help with ques no. 32

The ans is secretin hormone ..Can anyone explain how ?

[shell drum]

Secretin stimulates the pancreas and bile ducts and in turn , water and bicarbonates gets released from them. bicarbonates are basic in nature , which increases the pH value that helps reduce the acidic nature

[shell drum]

Is this what you wanted to know ? @copper mural

[verbal flume]

is this just an iupac name for chair conformation ??:>

[copper mural]

Yup ...I got it
Ty

[blissful parcel]

Chair conformation does not have to do anything with it , it's a bicyclo compound ( a compound in which two rings are connected by 2 or more carbon)

[urban lance]

Any physics majors here? What are your thoughts on Walter Lewin's lecture videos?

[fast frigate]

Can someone recommend me a book, resource where I could learn intro to Molecular Physics and Thermodynamics that has theory and some tasks where you have to do practice problems calculating things and where I can see the solution if I get stuck.
I have about a month to prepare for the exam for my intro Physics class in uni, teaching quality hasn't been great. Theory was alright but didn't get taught well how to do the problem tasks.
Teacher kind of just freestyle solves all the tasks in classes and moves on without really explaining it. Worried I might fail because I can't for the life of me figure out how to go about solving practice problems 😢

[near bloom]

@thorny gyro @thorny gyro @fickle stag

[thorny gyro]

A

@near bloom tamam şimdi yanlış

@near bloom dikkat et 4. dereceden tüketicilere diyo yukarıdan aşağı gidiyor demek istiyo

[fickle stag]

cevap B değil mi

[near bloom]

A

[fickle stag]

pardon D diyecektim

[thorny gyro]

zaten yukarıdan aşağı enerji aktarımı olmaz

aşağıdan yukarıdır

[fickle stag]

bi dk evet

ben niye okuyamıyorum

[near bloom]

4.dereceden üreticilere okudum ilk

[thorny gyro]

men demiştim😎

[near bloom]

öyle aldım da

[thorny gyro]

neyini anlamadın bebişim sen

ben anlatayım sana

[gaunt willow]

Can anyone help me with this

[thorny gyro]

burada da ingilizce konuşmamız lazım aslında ama

[gaunt willow]

Can anyone see my query

[near bloom]

ya şey 2 de takıldım cevap kesin a da

3 otomatik elenince a kalıyor

[thorny gyro]

piramitin üstüne doğru gidildikçe enerji tüketimi artar, daha büyük cüsse daha büyük av vs

[near bloom]

ha

tam

[frigid blade]

Have you tried Giancoli? It helped me but Im not sure if it serves your purpose

[paper leaf]

can someone help w/ a bunch of ap physics 1 problems

[round vale]

Speaking of hydrodynamics, can a mushroom cloud caused by an explosion be considered a thermal?

[shell plinth]

omg i am dying ........... tired sooo muchh ..... byee byee tata good night .... love uh mika

[grand pawn]

omg i am dying ........... tired sooo muchh ..... byee byee tata good night .... love uh mika

@shell plinth why have same pfp as me...

[shell plinth]

omg @grand pawn are you an attack on titan fan too....

[shell plinth]

omg i am dying ........... tired sooo muchh ..... byee byee tata good night .... love uh mika

[grand pawn]

yeas i love when they attack on the titasns

do not you?

[shell plinth]

thats not how you said that

you are kind of bad at english

anyway

can you help me with my science egg lab and colouroing

[grand pawn]

NOAAAA U DONT GET ENGLISH

don't= do not..

[grand pawn]

can u help me..

taht is so weird i also have to colour an egg...

[viral sorrel]

stop spamming

[thorny gyro]

Next time chat in general y’all

[shell plinth]

but i’m wondering how to do my egg lab

[thorny gyro]

Just ask the question cause you’re burying the questions which were asked before just by chatting not even by someone explaining to you.

[tender elbow]

is this channel also for biology?

[thorny gyro]

Yes

[tender elbow]

nice

[fast frigate]

Thanks for the suggestion, seems like a solid book

[clever raptor]

can anyone help me with this?

[clever raptor]

nvm solved it

[willow gale]

can someone help me pls?

i got this also if u need it

[willow gale]

ok thank you thank you!

[shell drum]

sorry about the bad diagram tho 😅

[willow gale]

nah it's perfect

[empty lake]

hey, does anyone have grade 10 biology past papers?

[distant jasper]

can anyone who knows some french help me out with something in biology?

[silent sundial]

Does anyone have lg wade pdf(organic chemistry)?

[pale bison]

I maybe can help in biology but not in french

[distant jasper]

do you have any idea what "cils vibratiles" might mean? Can't find an english translation or what it actually is

[pale bison]

I write to you in dm, okay?

[thorny gyro]

compare the dimensions.

[prime junco]

still need ?

[thorny gyro]

I know this is in german. Chemistry topic plastic - I do not know what to do with this...

[distant jasper]

no it's alright, thanks tho!

[prime junco]

Alright ! If you need help about biology (in french) doesn't hesitate !

[coarse basin]

I want to practice my french, can we talk sometime?

[prime junco]

If it can help you, yes !

[coarse basin]

nice

[soft kite]

Looks like a standard polymerization summary sheet. Do you mean like you can’t understand how it works? It happens via radical propagation

[thorny gyro]

can someone help me with this question?

Reynold number N is a function of the density of the liquid ρ, its speed v and coefficient of
viscosity η. Given that N is also directly proportional to D (diameter of the pipe). Obtain the
expression for N.

This is what I've solved so far

basically it's a dimensional analysis question

Nuke where r u? XDD

[blissful parcel]

Hmmmm

[thorny gyro]

omg there u are! hahaha

did I form the equations right?

[blissful parcel]

Oh lemme see

I did not read the doubt tho xD

[thorny gyro]

ohh lol

[blissful parcel]

Wait

[thorny gyro]

ok

[blissful parcel]

I read the question wrong , f

Gimme 5mins

[thorny gyro]

sure

[blissful parcel]

Wait lemme calculate now lol

[thorny gyro]

okiee

take ur time :>

[blissful parcel]

F = coefficient of viscosity area ×dv/dx

[thorny gyro]

wat?

[blissful parcel]

Was checking

Coefficient of viscosity is MLT-1

[thorny gyro]

well ig I just need to find the values of a,b,c and d and then I can just put in the values of the powers and ta-da that's the expression

ah

[blissful parcel]

F= MLt-2 = x (LT-1/L) L²

[thorny gyro]

wait r u sure?

[blissful parcel]

X= MLT-1

Aah wait

Nah am wrong

[thorny gyro]

haha yea 😅

it's alright take ur time! it took me time too that's why I asked

just ping me if u get it :]

[blissful parcel]

Aah I forgot some stuff , lmao , I had to revise fluids too , well solve the euqation you will get a= b= -c = d

@thorny gyro

[thorny gyro]

ooh

wait lemme see

yea can u help me with that

[blissful parcel]

From 1&3 a=b

put a= b is eq 2

[thorny gyro]

ooh

[blissful parcel]

d= b

And a+c=0 , a=-c

[thorny gyro]

ohh

[blissful parcel]

Ah should I write

[thorny gyro]

no no I got it

[blissful parcel]

I was on call , so I was just doing mind calc ;-;

[thorny gyro]

thanks!

[thorny gyro]

ohh sorry for disturbing u!

[blissful parcel]

Lmao , you didn't ping me or anything tho , I was the one who answered xD

[thorny gyro]

umm still?

idk lol

[blissful parcel]

Yep leave

[thorny gyro]

thanks!

[shell drum]

ML-1T-1

[prime junco]

density = kg.m^-3
Speed = m.s^-1
viscosity = kg.m^-1.s^-1
diameter = m
so
Wrong formating w8
So N = without dimension

I guess

[blissful parcel]

Yep

I did wrong I wrote too ;-;

[prime junco]

correct me if i am wrong

[shell drum]

Just saw the messages now . Maybe now you'll get it right

[thorny gyro]

hey how is b=d?

Nuke

[blissful parcel]

-3b+2b+d=0

[thorny gyro]

ohkk

[blissful parcel]

b=-c

a=b

[thorny gyro]

yepp

[blissful parcel]

Yep ty:)

[prime junco]

I think it s a better format

[thorny gyro]

Ohh thank youu

[prime junco]

A = 1 B = 1 C = -1 D = 1

[blissful parcel]

Well it does not mention in question that the number is dependent linearly on that quantity right ?

[prime junco]

well, so, a= r b= r c = -r d = r

[blissful parcel]

It just says it's the function of that quantities

[thorny gyro]

Ah wait

I just proved that a=b=-c=d

But what's the value? ;-;

[thorny gyro]

Yep I can do it this way too I think

[blissful parcel]

Nah it would not always work if you take it linearly ;-;

[thorny gyro]

what did I just solve? questions life

I'm still confused ;-;

[prime junco]

I thinks it's fine

[blissful parcel]

Aah in the end it says it is directly proportional to D , so we can take r=1

[thorny gyro]

but reynold's no. is dimensionless

[blissful parcel]

Yes it is

[thorny gyro]

if we take d as 1

[prime junco]

Look at my photo

i took a,b,d = r = 1 and c= -r = -1

[thorny gyro]

is that allowed?

I went for a different approach I think

[blissful parcel]

Well it is given in question that it is directly proportional to D means r=1 (d=r from your notation)

[thorny gyro]

ohhk

I think I get it

ohh yup got it

finally

[prime junco]

Sorry for the poor formating btw

[thorny gyro]

no no it's fine

thanks for ur input!

[prime junco]

Hope you're not confused about it

[thorny gyro]

nope I got it :>

[honest plank]

is anyone good at organic chemistry??

[prime junco]

Ask ur question and maybe some will help you

[unreal rivet]

don't ask to ask, just ask ^^ https://dontasktoask.com/

[fading mango]

If the law of entropy indicates a breakdown of order in the universe as energy is lost/dissipated, why is it that when a substance is cooled, it tends to crystallize? Even amorphous solids such as glass left for a long time show a tendency to crystallize. Why?

[honest plank]

Far point, my apologies. Its not a direct question, but i'm having a hard time understanding mass spec. , HMNR, CMNR, and IR charts. I was wondering if anyone had any good resources or notes on them.

[runic epoch]

excuse me, but can someone help me with these assignments ? I'm stuck

[fading mango]

I don't want to give you the answers cuz then you won't learn the concepts and it won't actually help you in the long run. So here are some hints.

1. Think of what the mass of the complete solution would be and the % of the solute (i.e. the baking soda) within that.

2. You know how to find the molar mass of a molecule using the atomic masses of each of the atoms it is comprised of right? Let that mass be X. If 1 mole (or Avagadro number of molecules) weigh X, then how many moles (and thus how many molecules) would weigh 70g? Simple cross multiplication!
   Now that you know how many molecules they are so you can use that to find how many H atoms they are in total as well!

3. Write out the balanced equation for the formation of AlO from Al and O. Now do what you did in question 2. Compare how whole number moles of Al would react with O to form whole number moles of AlO, and then cross multiply to see what fraction of moles of AlO would form from 108g of Al. Remember though, the yield is only 80% so only 80% of that mass would form, the rest will remain unreacted for whatever reason, so your answer should be 80% of your calculated mass.

Hope this helps!

Correct me if I'm wrong btw, I am fallible too and may have made a mistake somewhere

[midnight field]

A Student of mass 50kg walks up a slope inclined at 30° to the horizontal. Find the work done by the student if he walks 25m along the incline.

How do I solve this question

[runic epoch]

So I got in #3 assignment 102g mass of al2o3 (product) what the formula to calculate 80% yield

[paper leaf]

can someone help me with this quesiton

A spring with a cart at its end vibrates at frequency 6.0Hz6.0Hz.(a) Determine the period of vibration. (b) Determine the frequency if the cart’s mass is doubled while the spring constant remains unchanged and (c) the frequency if the spring constant doubles while the cart’s mass remains the same.

[minor minnow]

T=1/f , for b and c use dis equation

[lime pumice]

Displace the cart by a displacement x and then draw the F.B.D. of the cart. Then apply Newton's 2nd law and write the force equation. The spring force is the only restoring force. Find the accelerarion by dividing it by mass. You will notice that the acceleration is in the form: <a constant>*x where x is the displacement. Thus the motion is an S.H.M. We express the acceleration as w²x where w² is the conatant. Find w. Then the formula for time period is 2π/w and frequency is the reciprocal of that.
P.S.: w is the angular frequency of the S.H.M.

[shell drum]

I’m not entirely sure if this is the solution. Someone check and make corrections if any

[scenic coral]

Yall my question was genuine someone pls reply, can you extract DNA from semen through the same procedures for a strawberry

This was copied frm general they told me to ask here^

[ember talon]

Hahahaha, i'm going to guess not.

DNA= Protein.

Proteins are notoriously unstable outside of their native environments.

You'll probably need to put the DNA in some sort of buffer and treat it first, for stability & preservation.

[midnight totem]

probably not? I think the difference is the detergent being used, as the dish detergent for strawberries breaks up cell membranes to release the DNA, whereas in sperm DNA extraction, they use a strong antioxidant like DTT to break up the membrane rich in disulfide bonds. But I think every step after that is essentially the same since they precipitate sperm DNA using ethanol

some mfer was about to splooge in a beaker and watch a strawberry DNA extraction youtube tutorial lmaoo

[scenic coral]

Haha okay thanks for the reply guys!

thought ought to say im thoroughly disappointed

though*

[scenic coral]

Haha nah I watched that vid weeks ago, I was on a porn site there they were advertising some thing that I'm assuming help guys cum more?? And the ad was a gif with a dude ejaculating in a beaker with water. So obv I thought of the strawberry DNA extraction thing

[soft kite]

Furthermore, the reason such simple extraction works on strawberries is because they have lots of chromosomes

[scenic coral]

But dont sperms do too?

[soft kite]

Sperm has 23, a typical strawberries can have like 56

The concentration is just that different per gram of the stuff, so it’s just easier for the strawberries

[scenic coral]

ye but there are lots and lots of sperms in one go

[soft kite]

Plant cells are also just that much more tenacious because of cell walls and stuff

So there’s just enough of the end product without too much care for buffering

[scenic coral]

Ohhh okay icic

Tbh I just assumed it would be easier to retrieve sperm dna cause of how simple the components are for sperms compared to berries etc

Learn alot thx

learnt*

[wooden elm]

Who study physics from principle of physics by Halliday resnick and jearls walker

[frigid blade]

I've used it in my studies before...its a really big and heavy thing

[sudden loom]

Hi all! Is anyone able to help me with clinical chemistry? I need help with the explanation of why triglycerides level is normal in a diabetic patient, (shouldn't it be increased or decreased? I'm not sure 😦 ), and also coming up with a backstory to explain her state of condition. Currently we postulate that she's able to maintain her lifestyle and diet and just entered the symptomic stage of type 1 diabetes which has caused her to enter diabetic ketoacidosis, but we're also playing around with the idea of a possible infection to explain about her extreme hyperglycaemia. I would very much appreciate it if you could give me some input on how to solve this nutcase! (DMs are welcome :D)

[lusty pine]

Well, since entropy of universe is summation of system's entropy and surrounding's entropy, in some cases system's entropy decrease even when the net entropy increases.
All substance will try to minimise their free energy, some materials have a tendency to crystallize (for e.g metals) and others to amorphise, which is function of properties such as viscosity and fusion enthalpy.
Glass actually doesn't crystallize when cooled, it does (for a little while) when it is heated before finally melting.

[wooden elm]

I know, it is heavy but have whole phyiscs theories and concept.
Did you know pseudo force?

[prime junco]

Adn is a nucleic acid, not a protein

[ember talon]

mb, i got it mixed up with my work

[earnest hearth]

What is the name of the compound C2H5CHO

[prime junco]

Propanal

[earnest hearth]

Thank you

According to the Atmospheric refraction the sun visible us to actual sunrise at which time

@pale mist

[lime pumice]

Yes, it is used as a correctional term while writing force equation from non-inertial frame.
e.g:- centrifugal force

[wooden elm]

Yaa, but it isn't given in principles of physics book. I think it is only on Indian physics

[lime pumice]

Yeah, my edition of resnick halliday doesn't even have the concept of coefficient of restitution.
The book mostly solves problems from non inertial frame through relative acceleration(which is actually better for proper understading and visualisation).

[wooden elm]

Mhm, I have 9th edition.
It give the topic drag in friction
That isn't given in hc verma.
As drag is in fluid mechanics

[lime pumice]

Some books include springs in the elasticity chapter, whereas others include it in the Newton's laws of motion chapter. It completely depends on the author, how he organises his book.

[wooden elm]

Yaa, some author write in other and other one in another. But resnick Halliday book is organised.
But I think they can give vector first then motion in straight line

I put my notes in some section like
First section is for mathematics in physics, then experiments and then kinematics and so on

[lime pumice]

Most of my notes are random scribbles where I write down my every mistake or if I find some interesting thought I note it down.

[wooden elm]

It's good, if my notes are important so I double tick mark it.

[lime pumice]

I know a guy whose notes I could pass on as a book in its own. I really envy people who can take neat notes (ó_ò'). With my handwriting every thing I write looks like the footprint of a cockroach.

[wooden elm]

Footprint of cockroach, lol.
My handwriting is also not as classic American style, lol

[pale mist]

2 min before actual sunrise ig

[frigid blade]

The book is good for studying and understanding and yes I heard about pseudoforces its a cool concept but its a lot of time ago so Im not sure 🙂 We also used the Giancoli for studying, there are a lot of examples of calculations

[marble fjord]

hello, can anyone recommend a problem that is possible to be given a solution by an application?

[wet trench]

can someone plz tell how do i solve this....

[lime pumice]

Find out the magnitude of force. The displacement is in the direction of force, so the angle between force amd displacement vector is 0°.
Work done= force x displacement x cos(angle between them)
The magnitude of displacement is given
Put all in the formula and find the answer.

[lime pumice]

Are you asking for these kind of problems?

[wet trench]

thx a lot!!!!

[wooden elm]

Giancoli is good, but I don't like it much because it have mathematics,
But I use it to practice for mathematical physics

[wooden elm]

F = 2i + 3j + 4k
F = √2²+3²+4²
F ≈ 5.4N
So we have -
F = 5.4N; S= 5m
W = F. S
W = 5.4 × 5 = 27
W = 27J
It was simple, I think you are newbie.
But after some practice you will be master.

[wet trench]

💖

[wooden elm]

From where this question was

[wet trench]

tuitions

[wooden elm]

That's why it is simple

[wooden elm]

All the best

[wet trench]

lmaoooo

[wet trench]

[frigid blade]

I see your point of halliday then 🙂 I never liked physics much and it was just something I had to pass but its always nice to see someone who is really interested in it 😄

[wooden elm]

Yaa

[wooden elm]

I want to study mathematics perfectly, can you refer some books plz

[frigid blade]

I studied maths with calculus (schaums outlines)/ayres, it has a lot of examples...but for understanding everything my prof. made his own script that was super detailled 😄

[wooden elm]

Nice, thanks for reference:)

I think jvscholz should also make another channel for physics xD

But no one come there because many less people interested in physics (in Internet)

[blissful parcel]

[frigid blade]

yes, I agree 😮 maybe on day there will be physics/biology/chemistry channel instead of science xD

[wooden elm]

xD which subject you like

[thorny gyro]

help

[frigid blade]

since I study molecular medicine I like all of the molecular stuff like organic chemistry, biochemistry, molecular biology, microbiology, oncology etc 😄

[blissful parcel]

No test questions allowed , are you giving a test ?

#rules rule 5

[thorny gyro]

na this is from physics and math tutor lmao

[wooden elm]

Nice topics, I like that topics. Maybe oneday separate channel for biology will made xD

[wooden elm]

I think you are right 70% but not 30% because this is helping channel...

[blissful parcel]

Helping in a test is not called helping

[thorny gyro]

its not from a test

[blissful parcel]

@thorny gyro Okok

[thorny gyro]

im doin practice

[blissful parcel]

Minimum current will flow when the resistance is max in rheostat and maximum will flow when R=0 (R =resistance of rheostat)

[wooden elm]

Sorry bro I can't help you because I haven't reach in this topic

[blissful parcel]

11th grade?@wooden elm

Bio?

[wooden elm]

Nope, passed high school

[blissful parcel]

at 17?

[wooden elm]

Yes

@blissful parcel and u

[blissful parcel]

Damn am the youngest in my class , and also younger than avg students of my class and am still in 12th

12th ending

Will pass this year ,not year maybe in 2-3months

[wooden elm]

From india?

[blissful parcel]

Yep

Don't say you go to junior college , that still counts as HS

;-;

[wooden elm]

I never studied in india, I have studied in Korea in mys school days

[blissful parcel]

Ohhhhh

Damn ,

Idk about korean system tho

[wooden elm]

Korean system is hard but not too much xD

[blissful parcel]

Hmmm

Well I can't say anything about Indian system , cuz it will feel like am generalising my opinion as other peep's opinion

[blissful parcel]

@thorny gyro

[paper roost]

Did you give jee?

[blissful parcel]

Will give

[thorny gyro]

thank m8

[paper roost]

Mains i meant

[blissful parcel]

Uh yep

Avg score

:)

[paper roost]

How much percentile?

[wooden elm]

I sucked in this problem from resnick Halliday book

[blissful parcel]

Enough for advanced

[paper roost]

Above 95 or above 98?

99?

[blissful parcel]

No comment

[wooden elm]

Which rank?

[blissful parcel]

If I say any more subset then the probability will decrease of incorrect guessing the percentile

[wooden elm]

Ok

[blissful parcel]

Velocity isn't changing , so means the net force =0

[blissful parcel]

Uhhh, there are 2more attempts left , rank comes after that :)

[paper roost]

Yeah so it will be -2i + 6j

[blissful parcel]

Yep

[wooden elm]

Yaah, I think I send half of the question only, xD

[lime pumice]

Great dude! I'm also giving advanced this year. I'm not gonna join IIT tho....

[blissful parcel]

Same

[wooden elm]

Oh

[paper roost]

So you are preparing directly for advanced now?

[blissful parcel]

Yep

[wooden elm]

I can't give jee as I haven't authority of India lol

[paper roost]

Why?

[wooden elm]

I'm an independent student just following my passion lol

[blissful parcel]

Well am not specifically preparing for adv , am just revising all the topics , so that I can solve any question from any topic , for now am just revising everything , and then willl move on to questions of all level

[blissful parcel]

Oh that's nice

[wooden elm]

Haha

[lime pumice]

I'll be opting IISc, I should be able to get an admisson there with my KVPY score (fingers crossed)

[blissful parcel]

Ohh sed , I didn't give KVPY

[wooden elm]

Kvpy exam! It's is too cool exam, isn't?

I want to be a kvpy scolar but I can't

[paper roost]

Nice.. that is better than iits if interested in pure sciences

[lime pumice]

Yeah! I liked the questions, as they made you think.

[blissful parcel]

In 11th due to personally reasons and in 12th , last due date crossed for filling the form ;-;

[paper roost]

I gave both didnt get any

[blissful parcel]

Theoretical physics?

[wooden elm]

Yaa, I have solved every problem in kvpy, it was interesting and mind blowing and easy too (not much)

[lime pumice]

Where do you live currently?

[wooden elm]

Osaka

[blissful parcel]

Well I want to study theoretical physics too, but idk if I will be able to join IISC , idk

Well I have to work hard for adv then ;-;

[lime pumice]

oooooooo in japan?!???!!!!?!
That's like the best country ever!!!!

[wooden elm]

If your theoretical physics is good so it is easy to go to iisc

[lime pumice]

They are cool for solving at home but during the exam I was wayyyy stressed and made many silly errors....

[wooden elm]

😅 isn't it too much.
Maybe for you

[blissful parcel]

Idk anything about admission procedure , will see what happens in future

[lime pumice]

idk tbh, my knowledge from japan comes from anime and youtube videos only (ó-ò')

[wooden elm]

You can give kvpy or jee to admission
But iisc haven't b. Tech , it have b sc

[blissful parcel]

Damn you are from Japan and know more about Indian institutes nais

[wooden elm]

Anime is too different as the real Japan but YouTube videos are real

[lime pumice]

You can try jee. They take in students from jee too!

[blissful parcel]

Hmm then I have to focus then

[wooden elm]

I got these info from websites

[wooden elm]

Yaa, they can

[lime pumice]

bsc(research)
its a little bit different

[blissful parcel]

Let's see , I have to revise everything (including 11th) in just a month or so , so I can go to questions

[lime pumice]

All the best!

[wooden elm]

Yaa, it is too different than b tech I think
I will go to MIT like international college to grow my passion in research

[blissful parcel]

Oh nais nais

[lime pumice]

wooooaaaaahhhh!!
great dude! All the best for your future!

[blissful parcel]

Yea ty , I was leaving the server too lol, felt good to talk about stuff , idk what will happen in adv or future mains , but cya until then :)

All the best to you too

[wooden elm]

In months!! You have to start your revision before 2 months for jee advance.
When I solve jee advance pyqs,
I think it isn't too difficult so chill and stuyd smart not hard

[wooden elm]

Thanks

[wooden elm]

All the best to you bro, wish you get 2 digit rank

[blissful parcel]

Well I have to score extremely good to join IISC

[blissful parcel]

Lmao close to impossible but idk

[lime pumice]

It's really different during exam time, the pressure is really on at that time. For many it is their only chance at a good college. Some peeps even faint before the exam due to their pressure.

[wooden elm]

Don't tell your mind that, relax and study, I think it isn't hard too much tahn people says
Just solve pyqs

[lime pumice]

People screw up even easy questions then.

[blissful parcel]

Ok cya , am going , I joined this server to be connected to studies , instead I waste time more lol

[lime pumice]

Keep trying mate! Everything's possible!

[blissful parcel]

All the best fellow Jee aspirants

Will see you after adv:)

[wooden elm]

@blissful parcel to be honest you are wasting your time in discord if you are preparing for jee advance

[wooden elm]

Ok mate!

[unborn bluff]

Please help.... chem pain

[soft kite]

I think you just use partial pressures tbh

partial pressure of water + partial pressure of the gas = 111.0 kPa

subtract the partial pressure of the water from 111.0 to get the “dry gas”

then just use combined gas law

[eternal iris]

some one know how i can do material balance with chemistry reactions?

this is the reactor

one step conversion= 5%; efficiency global= 50%

the current 6= 30% C2H4 and 70% H2 ; caudal = 2445 l/h

[blissful widget]

yes

i do

i learnt it in my chemistry

so i cant read spanish

but i would love to

so i can dress up as a mexican person and try to sell drugs

my family is actually spanish

my auntie

[eternal iris]

life goal

[blissful widget]

yes it is

im trying

i made a tinfoil mexican moustache

so

let me explain the chemistry

[eternal iris]

you know how i can do a combustion ?

[blissful widget]

a combustion?

yes

[eternal iris]

yes, now i have another exercise

u can explain me how?

A boiler system uses liquid methanol as fuel. The system has a
23 L / hr feed current of methanol burning with excess air.
The gas produced has a composition on a dry basis of: 0.45% methanol, 9.01%
CO2, 1.81% CO.

that onbe?

one*?

[blissful widget]

sorry i was getting cereal

let me read

this is hydrogen bonding right?

[eternal iris]

nono , material balance

[blissful widget]

kk

uhm question

waht is the question in this

what do they want you to answer?

wait you live in uk?

[eternal iris]

nou

[eternal iris]

5 questions

a) Draw the block diagram of the process including all the information
delivered and identifying all currents and compositions.
b) Write the general mass balance equation that describes the process.
Indicate if the system is closed or open and justify your answer.
c) Perform the Degrees of Freedom analysis clearly writing the variables
unknown, independent equations, and additional information. I know
can you solve the problem? What type of balance will apply and why? Answer
in clear and legible handwriting.
d) In which units will you pose the problem and why? Please reply in clear handwriting and
readable.
e) Calculate the percentage of methanol conversion and the percentage of excess air
which is fed to the boiler system.
f) Calculate the mole fraction of water in the flue gas on a wet basis.

[blissful widget]

oh ok

[blissful widget]

bruh

that is alot

[eternal iris]

yes right

[blissful widget]

let me get my chemistry book for this

its a level level so it might helpo

[eternal iris]

really, you are going to help me?

i love you so much

[blissful widget]

im gonna try my best

so i found this it might heko

help*

https://www.ieabioenergy.com/wp-content/uploads/2013/10/ExCo66-Thermal-pre-treatment-of-biomass-for-large-scale-applications-summary-and-conclusions1.pdf

now question 1

let me draw it

u see

the problem is

that im learning this next year

lol

[eternal iris]

lol

hahah

how old are you ?

[blissful widget]

14

[eternal iris]

or in wich university you are

lol

im in my second year

[blissful widget]

so we have to start by flowchart scaling

its the process of changing the values of all stream amounts or flow
rates by a proportional amount while leaving the stream compositions and
conditions unchanged.

this summed up

is there any toluene mentioned?

[eternal iris]

yes i have part one, i dont know how to do the balances

[eternal iris]

no

[blissful widget]

oh wait

i have chemistry tomorrow

when is this due for you?

[eternal iris]

now

dont worry

[blissful widget]

ok, did you find the part mentioning hwo to solve them?

[eternal iris]

i found in the a book call felder

[blissful widget]

ok

it would be easier to solve if i understood it better

i like chemistry and stuff

so this might be a good for me to try and solve

was the name something like balder kennieve?

who did something in this area

i printed out a sheet

uhn

i asked my sister to mark it

so its easier to understand

it was her paper

its linked

the answer

is

the answer

hmmm

ok

so you draw the burner

@eternal iris u did that?

you draw 2 arrows going into it

wait only draw 1

in the burner box

coming out from

write down the gases produced

[eternal iris]

yes two

sorry

[blissful widget]

i mean 2

bruh

[eternal iris]

u have this ?

like the next steps

[blissful widget]

its not really linked

well it is

but no

the half of the sheet is like

ripped

and stuff

very sad

[eternal iris]

ooh sad

[blissful widget]

well

uhm

turns out

she doesnt know how to do it either

the box thingy she did know

but

ur in uni right?

she is going to uni this year

starting in september

at columbia uni

idk if that says anything

sorry

i thought i could help

[eternal iris]

dont worry

its okey

thank u so much

❤️

[blissful widget]

🙂 hope you get the answers correct

[abstract horizon]

Can anyone help me with (iii)

[dense pine]

i think its 5+(37/60)+(45/3600), then (measure of degree/1)x(pi/180)

[normal jewel]

q's from study guide that i do not get::

When alleles segregate during spermatogenesis or oogenesis, when do they recombine again?
Why do you think Mendel’s observed ration was different from the theoretical ratio?
What is the difference between a homozygous dominant and a homozygous recessive genotype?

[pale bison]

I can help you after coffee if no one answers to you🌸

[normal jewel]

ok thank y

[burnt egret]

Buen dia, ¿de casualidad alguien sabe la respuesta de estas dos preguntas?

[thorny gyro]

Can anyone help me with biology

[pale bison]

Depends on the question

[proven shuttle]

Does anyone know the similarities of plant and animal processes?

[pale bison]

Like the breathing? Plants at night use O2 and produce CO2

[fleet sentinel]

can someone check my work PLS!!!

[minor minnow]

correct

[boreal bay]

Does anyone have any tips on how i can study for Bio and Physics practicals, because of the pandemic, we haven't even done a single one and i have one on monday. Any help will be appreciated 😀

[thorny gyro]

In case you have a practical book which contains questions/exercises relating to the activity, it's important to do that. Otherwise you can focus on understanding the activities and their procedure, precautions etc.

Subject specific tips:

For physics, it's important to remember the formulas and application of those formulas.

For biology, it's important to remember the scientific names of species or the dyes used in observing cells etc. (if that's in ur syllabus)

Hope that helps!

[boreal bay]

Thanks, it helps! We don't have a practical book, but I can search for one online.

[late vigil]

Hello, can someone tell me how to learn Physics formulas, easily( but in a fast manner)

[boreal bay]

It's repetition and continuously using them to answer questions.

[late vigil]

So I should do more questions?

[thorny gyro]

Yep practice makes perfect, also it's important to understand the formula and not just mug it up

[late vigil]

And I dont know why but, I always feel lazy to do questions, be it Maths, Chem, Phy, CS

Do you have any solution to this problem of mine

Like if I start doing them

And cannot sucessfully do 2 or 3

I feel disheartened and then I just get up from my desk, fo around, and waste my time

Like its not that I dont know the concepts, I and my brain very well know that ai know the concepts by heart

[thorny gyro]

Ah...that happens..it's ok to feel disheartened sometimes but when that happens don't give up! Making mistakes is the way we learn so accept them and learn from those mistakes. Also, take small steps...that way you won't feel overwhelmed and it would be easier to achieve those set goals! ^^

[late vigil]

But I am appearing for JEE Exam, and the model questions are quite tough, so these things happen with me

[thorny gyro]

Oh another jee aspirant 😅

[late vigil]

You too?

[thorny gyro]

Yea but not giving it soon

[late vigil]

Hmm?

Standard?

11th?

[thorny gyro]

Yepp

[boreal bay]

JEE is for college?

or Secondary?

[thorny gyro]

Oh wait really?

Lol why r u worrying for jee rn?

[late vigil]

Yeah

Cause am in 12th xD

I thought ut would be embarrassing to ask for tips from a junior 😂

Lol but who cares

[thorny gyro]

Ohh sorry I thought u were also in 11th ;-;

[late vigil]

Hahaa

[thorny gyro]

Hahaha aw welp I mean I can relate that's why I was giving u tips

[late vigil]

Hey you can send me your doubts of 11th, that way I can revise my 11th easily

We can do that over dms

Cool?

[thorny gyro]

Hahaha sure

Well I'm pretty active over here

[late vigil]

Yep I have sent you a friend request

[thorny gyro]

Soo be sure to check out the science channel for my doubts

[late vigil]

Yeah whatever i'll tag you in the server

But PLS SEND YOUR DOUBTS to me via dms

[thorny gyro]

Lol I think I've switched off that feature

[late vigil]

I really need yo revise my 11th standard

[thorny gyro]

Hahaha okiee

[late vigil]

okay

[thorny gyro]

All the best!

[prime junco]

Which Bio praticals are you supposed to do ?

[boreal bay]

We don't know, but my teacher said it may be, Food Tests, Enzymes, or Looking into Cells. Any of those three.

[late vigil]

Youre in kota?

[prime junco]

let me see if I can find some of my works

[boreal bay]

Alright, thanks : )

[royal fractal]

Reactivity increases from "left to right" of the Periodic table

:)

Idk anymore uhu

[late vigil]

Can someone pls solve this?

R≠r

Potential at P and Q are Assumed by me

[safe zinc]

can someone help me please? 🙏

[fleet sentinel]

thank you!

[sand spade]

@late vigil Could you please verify the result

[narrow silo]

Can someone sum up the conservation of momentum please

[broken mantle]

basically, Pinitial = P final when it is conserved. Think of it like energy, where all of the force accumilated has to go somewhere

when a mass has velocity, it is hard to get its speed back to zero- the more momentum it has, the harder it is to stop it

your initial momentum of the object transfers into it's final; or, if you have an object colliding with another one, object a's momentum carries onto object b.

[abstract horizon]

Thanks

[tender elbow]

does anyone know why one string of the DNA is 3' and the other one is 5' ?

[pale bison]

For the positions of the last -OH

@tender elbow

[tender elbow]

thanks

[hearty dome]

you can start by going over each and every experiment diagram when it comes to physics. if you understand the circuit diagram , it'll be easier for u to know how to connect them. also, since its a pandemic i'm pretty sure that the they're going to go easy on you with the viva questions. if you learn the circuit, you have already learnt your aim of the experiments and materials requires, then start with the theory. if you learn the theory, then you'll get a hang on the tabular columns since you know the formulas. For bio, just by heart your stuff. They wont ask you anything out of the ordinary. Most probably they might tell you which all spotters to expect before going in. Take it easy, take you r time and study, Two days are enough to finish your portions and revise

[magic zealot]

You need a free 3' hydroxyl group on the sugar ring in order to initiate a nucleotide addition. This is only found on the end of a DNA strand.

There are 2 hydroxyl group positions of the sugar ring in nucleotides. RNA have both the 3' and 5' while DNA (hence the term de-oxy) only has the one in the 3' position

[boreal bay]

Thanks, definitely gonna use the advice y'all have given me, thanks!

[thorny gyro]

@short herald

[raw socket]

Anyone know any good source or stuff to learn about the mole concept I seriously don't get it )):

[coral kiln]

Have you tried watching crash course YouTube channel's videos?

[thorny gyro]

Which grade you're in

[raw socket]

year 11, Australia

[raw socket]

I'll check it out (': ty

[thorny gyro]

Ohh what u don't understand in mole concept

[raw socket]

like If I was given a question I can't answer it because I just get confused with the formulas my teacher said and understanding the terms to identify in the question

[thorny gyro]

Ohh it's easy to understand, mole means just a number which is equal to avegadro constant, and avegadro constant is also a number, btw how old are u

[raw socket]

16

I think its more of being able to know what to look for when I get given the question

[thorny gyro]

Send me some question, may be i could help u with it

[raw socket]

because if you asked me to find the mole or mass or whatever I am completely lost

oki

and I'm strong in maths too.. I think I just don't understand the concept or overthink it

@thorny gyro

[thorny gyro]

Can someone give me two reaction equations each with metal formation, ionic bond and polar atomic bond? pls

[thorny gyro]

1st i'll teach u basics

[thorny gyro]

1st we have to find the relative atomic mass of that compound

And relative atomic mass doesn't have any unit

After keeping gram after the relative atomic mass, it becoms it's molar mass,

[raw socket]

what do you you mean keeping gram after the relative atomic mass?

sorry (':

[thorny gyro]

Then the relative atomic mass of carbon is 12and that of oxygen is 16 and hydrogen is 1

[raw socket]

is the relative atomic mass 60?

[thorny gyro]

Yesss

[raw socket]

aand then do you like divide?

or

[thorny gyro]

Yeah divid it by 20.6

Then you get number of moles

[thorny gyro]

In my book it's like this, 1 mol of sodium atoms= 23g of sodium

The relative atomic mass of sodium is 23 no, so when we keep grams next to it, it means there is one mole of sodium atoms in 23g of sodium, means there is avegadro no. Of atoms

And if there are 46g of sodium, number of moles in it is 2 moles

[raw socket]

20.6 divided by 20 which equals 0.34 mole right? is dat the answer

[quaint idol]

Oh mole 😱

Guf thats guf

Gud clears throat

[thorny gyro]

Noo, divide 60 by 20.6

[quaint idol]

Yes yes yes yes yes yes

.__.

[raw socket]

ohhh my bad

[thorny gyro]

Like we divide 46g of sodium by23g, then we get answer as 2

[thorny gyro]

Yayy

[quaint idol]

Yes yes

[thorny gyro]

Don't give up

[quaint idol]

Nevar gave up

[raw socket]

i dont really get this aaa

[raw socket]

im not im trying rnnn ^-^

[quaint idol]

A wise man once said-
We're no strangers to love
You know the rules and so do I
A full commitment's what I'm thinking of
You wouldn't get this from any other guy

I just wanna tell you how I'm feeling
Gotta make you understand

Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you

We've known each other for so long
Your heart's been aching, but
You're too shy to say it
Inside, we both know what's been going on
We know the game and we're gonna play it

And if you ask me how I'm feeling
Don't tell me you're too blind to see

Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you

Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you

(Ooh, give you up)
(Ooh, give you up)
Never gonna give, never gonna give
(Give you up)
Never gonna give, never gonna give
(Give you up)

Never give up

[thorny gyro]

Ufffff

[raw socket]

oh wait so the question already tells you the 1 mol of sodium atoms =23g of sodium? Or is this like the expected knowledge

[quaint idol]

Expected knowledge

You have learnt masses till 25?

20 is enough too

[thorny gyro]

Ahh listen

[raw socket]

oh wait thats just the mass

[quaint idol]

Yes yes yes yes yes

[thorny gyro]

Yeah

What is meant by mole according to u@raw socket

[quaint idol]

Yah thats the speciality of avogadro number

[thorny gyro]

Mole is the unit of measuring substance, as an example when there are 10 mangoes we say there are 10 mangoes, but we need a SI unit for measuring substance, that's why mole is derived using avegadro constant, where 1 mole= avegadro constant

@short herald wanna join?

[quaint idol]

Whose she him

[raw socket]

isnt mole the avagadro number

[thorny gyro]

My bestie

[raw socket]

yes I get what you're saying doe

[thorny gyro]

Yesss it is

[short herald]

sorry, in a class rn

[thorny gyro]

Oki bro

[quaint idol]

@short herald college?

[raw socket]

so we got the 60/20.6 which equals 2.91 right

is it 2.91(avagadro number)

[thorny gyro]

Yeah correct

[raw socket]

or

[quaint idol]

Your fundamentals are not cleared is it?

[raw socket]

yea not really, my teacher did not explain it well so I'm trying to learn it

[short herald]

negative, high school final

[quaint idol]

Common but its gud you are wandering outside school

[thorny gyro]

Ahh, avegadro number is a constant, which is not varying, it is 6.022× 10^23

[raw socket]

ohh okay

[prime junco]

I don't get your points using avogadro here, you're not looking for particules, you just have to use n=m/M

[thorny gyro]

Mole meand 6.022× 10^23 atoms in case of elements, in case of compounds it means 6.022× 10^23

[thorny gyro]

It's just an equation, just to use without understanding concepts

[raw socket]

so the final answer would be 2.91 mol ?

[thorny gyro]

Yeah

[quaint idol]

https://youtu.be/4q2elWPfB6A

Here you go gud animation is always better than texts

[thorny gyro]

Yea it'll be better

[raw socket]

okay I will watch it thank you

[quaint idol]

I was you someday that day was past

[raw socket]

the answer book does say it is 20.6 divided by 60 doe

[raw socket]

oohh, hopefully it will pass for me too

[quaint idol]

Nah i wasn't satisfied by watching that

[raw socket]

oh

[thorny gyro]

Wait wait

Lemme check the question again

There are 20.6g or 60g of acid in the question?

[quaint idol]

How can a number exist so that for every that number of atoms the mass becomes equivalent to their atomic mass

[raw socket]

20.6g

oh yea so mass/M right

[prime junco]

60= 2xM(C) + 2xM(O) + 4xM(H)

[thorny gyro]

Yayy then divide it by 60, yesyes i was in a wrong point

[quaint idol]

I haven't seen the question ._. 😂

[raw socket]

I understand it now doe thank you so much Hinata

can I ask one more thing doe

theres like 3 questions in that big question

2 say "the amount of"

and one says number of

[thorny gyro]

1 mole is in 60g, so to find the number of 20.6g, u should divide

[raw socket]

like what is it asking for

[thorny gyro]

My pleasure

[quaint idol]

Can you just click a picture n send

I will solve it for you

Then u watch videos

[thorny gyro]

Yay wait, ima see the que

[quaint idol]

Do practice prblms

And then you become a mole giant

[raw socket]

MOLE giant

amount of carbon in moles is it 2(6.022x10^23)

or no

[thorny gyro]

For that 1st calculate number of carbon atoms in the equation

[quaint idol]

You want answers?

Tell me @raw socket

You want answer,m

?

[thorny gyro]

Yes correct

[raw socket]

ITS CORRECt?

omg

[thorny gyro]

There are 2 carbon atoms in the equation no

[thorny gyro]

No wait

You're saying the number of atoms of carbon in 1 mole of that acid

[raw socket]

Ill try figure it out first if I get it wrong you can say what is wrong

ohh

[thorny gyro]

But we have only 20.6g no

The answer u got for the 1st que is 0.34 no

[pale bison]

Hi guys. I'm trying to do a research about the relationship about plants and human and plant's emotions. (Are they happy when we touch them or when we talk to them?) but I'm restricted to only 2 languages. If you please can find a couple of scientific article about this on your language it could help me a lot. I will translate it by myself ^^

[thorny gyro]

Divide this 2×6.022 by 0.34, @quaint idol is this right

[prime junco]

checks ur unit

[quaint idol]

Here you go

[raw socket]

wait i have answers i can tell you if right or wrong

I jsut dont know how they get it

[quaint idol]

@raw socket

[raw socket]

woa

thank you so much

both of u

I rlly appreciate it

[quaint idol]

Nah