Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 4 - Types of Chemical Reactions and Solution Stoichiometry - Review Questions: 2

Answer

Strong electrolytes completely ionize in water and produce a strong current. Ex. NaOH, HBr Weak electrolytes partially ionize in water and produce a weak current. Ex.HF, HCN Nonelectrolytes do not ionize in water and produce no current. Sugar ($C_{12}H_{22}O_{11}$) We may test the type of electrolyte by dissolving the substance in water and testing its conductivity and strength of the current produced by the brightness of a light.

Work Step by Step

Electrolytes are substances that when dissolved in water, produce a current. On the other hand, nonelectrolytes do not produce a current when dissolved in water. Strong electrolytes are primarily composed of strong acids, strong bases, and soluble salts which completely ionize and produce a strong current. Weak electrolytes are primarily weak acids and bases who partially ionize in water (<5%) and produce a weak current.
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