Which one of the following statements is TRUE?
A) A buffer is an aqueous solution composed of two weak acids.
B) A buffer can absorb an unlimited amount of acid or base.
C) A buffer resists pH change by neutralizing added acids and bases.
D) A buffer does not change pH when large amounts of a strong acid or a strong base are added.
E) The common ion in a buffer solution does not have any effect on the dissociation of the acidic component of the buffer solution.

Question

Quizplus · Accepted Answer

A buffer solution resists pH change by neutralizing added acids or bases through its weak acid and its corresponding conjugate base or weak base and its corresponding conjugate acid. It can only absorb a limited amount of acid or base before the pH starts to change. Therefore, statement A, B, D, and E are false.

Which One of the Following Statements Is TRUE