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An aqueous so...

Question

An aqueous solution of $C H_{3} C O O H$ has a pH = $3$ and acid dissociation constant of $C H_{3} C O O H$ is $10^{- 5}$ . What will be the concentration of acid taken initially?

0.1

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Solution

The correct option is B $0.1$ M
$H^{+} = \sqrt{K_{a} \times C}$

$10^{- 6} = 10^{- 5} \times C$

$C = 0.1 M$

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