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The pH of a solution at 25^(@)C containi...

The `pH` of a solution at `25^(@)C` containing `0.10 m` sodium acetate and `0.03 m` acetic acid is (`pK_(a)` for `CH_(3)COOH=4.57`)

A

`4.09`

B

`5.09`

C

`6.10`

D

`7.09`

Text Solution

Verified by Experts

The correct Answer is:
B
`pH=pK_(a)+log``(["salt"])/(acid)=4.57+log'(0.10)/(0.03)=5.09`
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