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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

3.24

B

4.59

C

5.09

D

6.67

Text Solution

Verified by Experts

The correct Answer is:
C
`pH=pK_(a)+log.(["Salt"])/(["Acid"])`
`=4.57 +log. (0.1 )/(0.03)=5.09`
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