A buffer solution is 0.100 M in both HC₇H₅O₂ and KC₇H₅O₂ and has a pH of 4.19.Which of the following pH values would you expect from the addition of a small amount of a dilute solution of a strong base? A) 3.89 B) 3.69 C) 5.79 D) 4.49 E) There is not enough information to determine.

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Quizplus · Accepted Answer

The addition of a small amount of a strong base to a buffer solution would slightly increase the pH. Since the original pH is 4.19, the closest and slightly higher pH value is 4.49. Buffer solutions resist changes in pH, so the change would not be drastic.

A Buffer Solution Is 0