Chemistry 9th Edition

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

Chapter 11 - Properties of Solutions - Exercises - Page 544: 45


a) $NH_3$ b) $CH_3CN$ c) $CH_3COOH$

Work Step by Step

a) $NH_3$ is more soluble than $PH_3$ in water because the electronegativity difference between nitrogen and hydrogen is greater than that between phosphorous and hydrogen; therefore, $NH_3$ is more polar than $PH_3$ due to its more polar bonds and is more soluble. b) $CH_3CN$ is more soluble than $CH_3CH_3$ in water because $CH_3CN$ is polar while $CH_3CH_3$ is nonpolar, and water dissolves polar molecules better than nonpolar molecules. c) $CH_3COOH$ is more soluble than $CH_3COOCH_3$ in water because its oxygen atoms (the most electronegative atom in the molecule) are further from the center of the molecule than the oxygen atoms in $CH_3COOCH_3$, making $CH_3COOH$ more polar.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.