If a solution is buffered at a pH of 9.5, then the addition of a small amount of acid will cause the solution to have a pH of approximately
A) 7.5
B) 8.5
C) 9.5
D) 10.5

Question

Quizplus · Accepted Answer

Buffer solutions resist changes in pH when small amounts of acid or base are added. Therefore, if the solution is buffered at a pH of 9.5, adding a small amount of acid will not significantly change the pH, keeping it approximately at 9.5.

If a Solution Is Buffered at a PH of 9