Chemistry: Atoms First (2nd Edition)

Published by Cengage Learning
ISBN 10: 1305079248
ISBN 13: 978-1-30507-924-3

Chapter 13 - Exercises - Page 575e: 113


$HCl$, $NH_4Cl$, $KNO_3$, $KCN$, $KOH$

Work Step by Step

1. Since the concentratrion is the same, we just have to identify the strength of the compounds. ** Remember, conjugate pairs of strong acids and bases are insignificant electrolytes. - Determine the significant electrolytes in each compound: - $KOH$ is a strong base. $K^+$: Insignificant acid. $N{O_3}^-$: Insignificant base. -$KNO_3:$ Neutral $K^+$: Insignificant acid. $CN^-$: Weak base. - $KCN$: Low basicity. $N{H_4}^+$: Weak acid $Cl^-$: Insignificant base. - $NH_4Cl$: Low acidity. - $HCl$: Strong acid. 2. In order of most acidic to most basic: $HCl, NH_4Cl, KNO_3, KCN, KOH$
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