Chapter 4.1, Problem 4.2CC

Interpretation Introduction

Interpretation:

The substances in each beakers has to be identified and classified into strong electrolyte, weak electrolyte and nonelectrolyte.

Concept introduction:

Nonelectrolyte:  A non-electrolyte is a substance which dissolves in water to give a solution which is non-conducting in nature.  Methanol and sucrose are two examples of non-electrolytes.

Electrolyte:  An electrolyte is a substance which dissolves and produces ions in solution.  There are two types of  electrolytes.  Strong electrolytes like $\text{NaCl}$ completely ionizes in water.  Solutions of strong electrolytes are good conductors of electricity.  Weak electrolytes partially ionizes in water.