An acetate buffer has a pH of 4.40. Which of the following changes will cause the pH to decrease?
A) dissolving a small amount of solid sodium acetate
B) adding a small amount of dilute hydrochloric acid
C) adding a small amount of dilute sodium hydroxide
D) dissolving a small amount of solid sodium chloride
E) diluting the buffer solution with water

Question

Quizplus · Accepted Answer

Adding hydrochloric acid will increase the concentration of H+ ions, therefore decreasing the pH of the buffer solution.

An Acetate Buffer Has a PH of 4