Ionic Equilibrium.

[dapper violet]

Few small doubts.

1. When do we neglect terms like 1±α? How much does it impact the final answer?

2. When do we factor in the contribution of auto-ionisation for calculating pH of a solution?

[patent lotus]

<@&1227988359910260737>

Note for OP

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[zenith basin]

5% rule

if the answer is off by <= 5%

same answer for both

[dapper violet]

For contribution of auto-ionisation too? 5% wrt what?

[zenith basin]

of the answer

like 10-8 ka pH to be 8

is wrong because

it is >5% from the answer

which ie 6.98 or whatever

[dapper violet]

Ah

Ok understood

+solved @zenith basin