A buffer solution
A) contains more than the expected amount of solute for a particular temperature and is therefore unstable
B) contains the maximum amount of solute possible for a particular temperature
C) changes color upon addition of strong base
D) contains an equal number of hydronium and hydroxide ions
E) resists changes in pH upon addition of acid or base

Question

Quizplus · Accepted Answer

A buffer solution is a solution that can resist changes in pH upon addition of acid or base. It typically consists of a weak acid and its corresponding conjugate base or a weak base and its corresponding conjugate acid. The buffer capacity is dependent on the ratio of the concentrations of the weak acid/base and its conjugate species. Therefore, option A, B, C, and D are incorrect.

A Buffer Solution