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

8.37

4.37

4.74

0.474

Text Solution

Verified by Experts

The correct Answer is:

For a salt of a weak acid and strong base
`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)=71.37 =8.37`

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