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How many moles of HCOONa must be added t...

How many moles of HCOONa must be added to 1L of a 0.1 M solution of HCOOH in order to prepare a buffer solution of pH = 3.4? (Given : `K_(a)` of HCOOH `=2 times 10^(-4)` at 298 K)

A

0.2

B

0.1

C

0.05

D

0.01

Text Solution

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The correct Answer is:
C
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