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A buffer solution contains 1 mole of (NH...

A buffer solution contains `1` mole of `(NH_(4))_(2)SO_(4)` and `1` mole of `NH_(4)OH(K_(b)=10^(-5))`. The `pH` of solution will be:

A

5

B

9

C

`5.3010`

D

`8.6990`

Text Solution

Verified by Experts

The correct Answer is:
D
`pOH=pK_(b)+log([0"Salt"])/(["Base"])`
`pK_(b)+log(["Cation"])/(["Base"])`
`[NH_(4)^(+)]=2xxmol e of (NH_(4))_(2)SO_(4)`
`:. pOH= 5+log(2)/(1)=5.3010`
or `pH=8.6990`
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P BAHADUR-IONIC EQUILIBRIUM-Exercise3A
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