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Determine the pH of an acidic buffer sol...

Determine the `pH` of an acidic buffer solution `(HA+NaA)` having acid and salt concentration respectively `0.1M` and `0.2M`. (Given `pK_(a) = 4.7, log 2= 0.30, log 5=0.70)`

A

`4`

B

`5`

C

`3`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
Determine the `pH` ……
`pH = 4.7+"log"(0.2)/(0.1)=5`
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