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In the titration of 25.0 mL of 0.1 M aqu...

In the titration of `25.0` mL of `0.1 M` aqueous acetic acid `(K_(a) = 1.8 xx 10^(-5))` with `0.1 M NaOH` (aq), the pH after addition of `10.0 mL` of tirant is

A

`5.34`

B

`4.57`

C

`6.76`

D

`2.92`

Text Solution

Verified by Experts

The correct Answer is:
B
`:'` meq of acid `gt` meq of base, the solution is acidic buffer.
`:. pH = pK_(w) + "log" (["salt"])/(["acid"])`
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