Chapter 19.5, Problem 47LC

Interpretation Introduction

Interpretation : The type of substance combined to make a buffer solution is to be described.

Concept Introduction : A buffer is a solution that retains the pH of a solution irrespective of the addition of small amounts of acids or bases.

Answer to Problem 47LC

Either weak acid or base along with its respective salts constitutes a buffer solution.

Explanation of Solution

A weak acid and one of its salts or a weak base and one of its salts are solutions that are used as buffers.

Buffers are formed by the combination of weak acids or bases with their respective salts.

For example, ethanoic acid-ethanoate ion buffer, and ammonium ion-ammonia buffer.