Chapter 19, Problem 19.5P

Interpretation Introduction

Interpretation:

The factor influencing buffer capacity has to be identified.

Concept Introduction:

Buffer solution:

An aqueous solution consisting mixture of weak base and its conjugate acid or weak acid and its conjugate base.  Its pH value changes very small when a small amount of strong base or an acid added to it.

Buffer capacity:

A quantitative measure of the resistance of a buffer solution to pH value change on the addition of hydrogen ion or hydroxide ion is known as buffer capacity.

$\text{Buffering}\text{capacity}\text{=}\frac{\text{sum}\text{additions}\text{of}\text{acid}\text{or}\text{base}}{\text{change}\text{in}\text{pH}\text{value}}$