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To a 200 ml of 0.1 M weak aicd HA soluti...

To a `200 ml` of `0.1 M` weak aicd `HA` solution `90 ml` of `0.1 M` solution of `NaOH` be added. Now, what volume of `0.1 M NaOH` be added into above solution so that `pH` of resulting solution be `5`. `[K_(a)(HA)=10^(-5)]`

A

2 mL

B

20 mL

C

10 mL

D

15 mL

Text Solution

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The correct Answer is:
c
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