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Introduction and Degree of Hydrolysis

In a mixture ...

Question

In a mixture of ${C H}_{3} C O O H$ and ${C H}_{3} C O O N a$ , the ratio of salt to acid concentration is increased by ten folds. The $p H$ of the solution will increase by:

A

0

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B

1

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C

2

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D

3

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Solution

The correct option is A $1$
$p H = p K_{a} + log \frac{[Conjugate base]}{[Acid]}$
if $\frac{[Conjugate base]}{[Acid]}$ increases by $10$ times $p H = p K_{a} + 1$

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