Chemistry 9th Edition

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

Chapter 14 - Acids and Bases - Exercises: 43

Answer

a. HCl b. $HNO_2$ c. $HCN$

Work Step by Step

a. $HCl$ has a greater $K_a$ value than $H_2O$. Therefore, $HCl$ is stronger. b. $HNO_2$ has a greater $K_a$ value than $H_2O$. Therefore $HNO_2$ is stronger. c. $HCN$ has a greater $K_a$ value than $HOC_6H_5$. Therefore, $HCN$ is stronger.
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