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pK(a) of CH(3)COOH is 4.74 . The pH of 0...

`pK_(a)` of `CH_(3)COOH` is 4.74 . The pH of 0.01 M `CH_(3)COONa` IS

A

8.37

B

4.37

C

4.74

D

0.474

Text Solution

Verified by Experts

The correct Answer is:
A

`pH = 7 + (1)/(2)[pK_(a) + log C] = 7 + (1)/(2)[4.74 + log 10^(-2)]`
`= 7 + (1)/(2)[4.74 -2] = 7+ (2.74)/(2) = 8.37`
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