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UPSEE Solved Model Paper 8

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Question : 96

Total: 150

What volume of 0.10M sodium formate solution should be added to 50ml of 0.05M formic acid to produce a buffer solution of pH 4.0? (pKa for formic acid is 3.80)

3.96 ml
20 ml
39.6 ml
100 ml

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