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The K(a) of a substituted benzoic acid a...

The `K_(a)` of a substituted benzoic acid at 298 K is `1 times 10^(-4)`. The pH of a 0.01 M aq. solution of its sodium salt at 298 K is

A

8

B

9

C

7.5

D

8.5

Text Solution

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The correct Answer is:
A
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