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1 M benzoic acid (pKa=4.20) and 1 M C6H5...

1 M benzoic acid `(pK_a=4.20)` and 1 M `C_6H_5COONa` solutions are given separately What is the volume of benzoic acid required to prepare a 300 ml buffer solution of pH =4.5 ? [log 2 =0.3]

A

200 mL

B

150 mL

C

100 mL

D

50 mL

Text Solution

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The correct Answer is:
c
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