Chemistry: The Molecular Science (5th Edition)

Published by Cengage Learning
ISBN 10: 1285199049
ISBN 13: 978-1-28519-904-7

Chapter 14 - Acids and Bases - Questions for Review and Thought - Topical Questions - Page 652d: 70b

Answer

The pH of an $Na_2S$ solution will be greater than 7. This happens because, this salt is formed by a insignificant acid $(Na^+)$ and a strong base $(S^{2-})$, therefore, the solution is basic.

Work Step by Step

To predict the pH range of an salt: 1. Identify the ions that form this salt, and compare its strengths: 2 $Na^+$: Insignificant acid. 1 $S^{2-}$: Strong base. Therefore: $S^{2-}$ is the stronger electrolyte, so, the solution is basic.
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.