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10. Acid-Base Titrations - Part 2 of 2

10. Acid-Base Titrations / Polyprotic Titrations / Problem 3

Problem 3

After adding 70 mL of NaOH to 50 mL of 0.100 M phosphoric acid, what is the pH using the Henderson-Hasselbalch equation?

A

11.96

B

4.70

C

7.03

D

9.66