Chapter 14, Problem 21E

Interpretation Introduction

(a)

Interpretation:

The color of the phenolphthalein indicator at $\text{pH}\text{6}$ is to be stated.

Concept introduction:

A substance showing different colors on different $\text{pH}$ is known as acid-base indicator. Every acid-base indicator has a $\text{pH}$ range. Acid-base indicator shows their effect within their $\text{pH}$ range.

Interpretation Introduction

(b)

Interpretation:

The color of the phenolphthalein indicator at $\text{pH}\text{12}$ is to be stated.

Concept introduction:

A substance showing different colors on different $\text{pH}$ is known as acid-base indicator. Every acid-base indicator has a $\text{pH}$ range. Acid-base indicator shows their effect within their $\text{pH}$ range.