Chapter 16.4, Problem 2RC

Interpretation Introduction

Interpretation:

The $KCN$ increased and decreased $pH$ range should be determined given the statements.

Concept introduction:

The pH of a solution is negative logarithm of the hydrogen ion concentration.

${\text{pH = -log[H}}^{\text{+}}\text{]}$

$pH$ is a measure of the acidity or basicity of a solution. Pure water is said to be neutral with pH close to 7.0 at ${\text{25}}^{\text{0}}\text{C}$.