Identify a good buffer.
A) small amounts of both a weak acid and its conjugate acid
B) significant amounts of both a strong base and a strong acid
C) small amounts of both a strong acid and a conjugate acid
D) significant amounts of both a weak acid and a strong acid
E) significant amounts of both a weak acid and its conjugate base

Question

Quizplus · Accepted Answer

A good buffer should have significant amounts of both a weak acid and its conjugate base. This allows the buffer to resist changes in pH when an acid or base is added. The other choices either have a significant amount of a strong acid/base or small amounts of the weak acid/conjugate base, both of which do not make for an effective buffer.

Identify a Good Buffer