Chapter 20.2, Problem 3P

Interpretation Introduction

Interpretation:

A mixture of naphthalene and benzoic acid is to be separated. Taking advantage of the acidity of one of the component how the separation can be effected is to be stated.

Concept introduction:

The mixture can be separated by dissolving it in an organic solvent, extracting the acid as its salt into aqueous phase, re-acidifying and then extracting the pure acid back into an organic solvent.

To state:

How to separate a mixture of naphthalene and benzoic acid, taking advantage of the acidity of one of the component in the mixture.