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Calculate the pH of 0.2M sodium butyrate...

Calculate the pH of `0.2M` sodium butyrate, `(K_(a)` for butyric acid is `2.0xx10^(-5))`

Text Solution

Verified by Experts

The correct Answer is:
9
`[OH^(-)]=sqrt((K_(w))/(K_(a))xxc)=sqrt((10^(-4)xx0.2)/(2.0xx10^(-5)))=10^(-5)`
`:. pOH = 5 or pH = 9`
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