Chemistry 9th Edition

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

Chapter 14 - Acids and Bases - Exercises: 40

Answer

a. Right image (Partially ionized) b. Right image (Partially ionized) c. Left image (Completely ionized) d. Right image (Partially ionized) e. Left Image (Completely ionized)

Work Step by Step

A strong acid completely ionizes in water, while a weak acid only partially ionizes in water. Therefore, the left image of the solution consisting of only ions is appropriate for strong acids, and the right image of the solution consisting of mostly molecules is appropriate for weak acids. Therefore, because $HNO_3$ and $HCl$ are strong acids, the left image best represents $HNO_3$ and $HCl$. Similarly, because $HNO_2, HF, HC_2H_3O_2$ are weak acids, the right image is appropriate for these acids.
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