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Amino Acids and Henderson-Hasselbalch

3. Amino Acids / Amino Acids and Henderson-Hasselbalch / Problem 6

Problem 6

A solution contains 0.2 M formic acid (pKa = 3.75) and 0.1 M sodium formate. What is the pH of the solution?

A

4.05

B

3.75

C

3.45

D

3.15