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The dissociation constant of a substitud...

The dissociation constant of a substitude benzoic acid at `25^(@)C` is `1.0xx10^(-4)`. The pH of a `0.01M` solution of its sodium salt is

Text Solution

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Given `K_(a)=10^(-4)`
`pK_(a)=4`
`C=0.01M`
`pH=7+(1)/(2)pK_(a)+(1)/(2)logC=7+(1)/(2)(4)+(1)/(2)(-2)=8`
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