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Buffers

8. Monoprotic Acid-Base Equilibria / Buffers / Problem 3

Problem 3

Using the Henderson-Hasselbalch equation, calculate the pH of a buffer solution containing 0.2 M formic acid (pK_a = 3.75) and 0.1 M sodium formate.

A

4.25

B

4.05

C

3.45

D

3.75