How many grams of KC7H5O2 should be added to 100mL of 0.100M HC7H5O2 (benzoic acid) to...

Question

Question

How many grams of KC7H5O2 should be added to 100mL of 0.100M HC7H5O2 (benzoic acid) to form a buffer solution with pH=4.00?

Answer 1

Answer #1

Answer :-

The mass of of potassium benzoate is calculated using the pKa and pH value using Henderson Halsselbalch equation.

The answer is given in the image,

Answer 2

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