A chemical buffer system consists of a pair of substances involved in a reversible reaction, one that can yield free H⁺ and one that can bind with free H⁺.

Question

Quizplus · Accepted Answer

This statement accurately describes a chemical buffer system. The reversible reaction involves one substance that can donate a proton (HA) to form an acid (H+) and another substance (A-) that can accept a proton to form a base (HA). The acid and base forms of these substances act as conjugate acid-base pairs and help maintain a stable pH in a solution by either donating or accepting protons as needed.

A Chemical Buffer System Consists of a Pair of Substances