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One litre of a buffer solution contains ...

One litre of a buffer solution contains `0.1 M NH_(4)OH`. The `p^(kb)` of base is `5.pH` value of the solution is

A

`9`

B

10

C

4

D

6

Text Solution

Verified by Experts

The correct Answer is:
B
`p^(OH) = p^(kb) + "log" (["Salt"])/("Base")`
`p^(OH) = 5 + "log" (0.01)/(0.110), p^(oh) = 5 + "log"10^(-1)`
`P^(OH) = 4, p^(H) = 10`
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Knowledge Check

  • 1 lit of buffer solution contains 0.1 mole each of NH_(4)OH and NH_(4)Cl . What will be the P^(H) of the solution when 0.01 mole of HCl is added to it [ P^(Kb) of NH_(4)OH = 4.74 ]

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