Chapter 10, Problem 10.21P

Interpretation Introduction

Interpretation:

Color observed before, at, and after equivalence point with thymol blue indicator has to be identified.

Concept Introduction:

In an acid base-kind of titration, the progress of the reaction is quantified by neutralization of analyte when the definite volume of titrant is added. The indicators used are sensitive to $\text{pH}$ changes. Suitability of such an indicator is governed by their ability to detect endpoints accurately when the equivalence point is reached. Most suitable indicators have a transition range of $\text{pH}$ coincides with  $\text{pH}$ at equivalence point.