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In a buffer solution containing equal co...

In a buffer solution containing equal concentration of `B^(-)` and `HB`, the `K_(b)` for `B^(-)` is `10^(-10)`. The `pH` of buffer solution is

A

10

B

7

C

6

D

4

Text Solution

Verified by Experts

The correct Answer is:
D
`pH=pK_(a)+"log" ([CB])/(["Acid"])`
`pK_(w)pK_(b)+"log"([CB])/(["Acid"])=14-10+log1~~4`
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