Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 15 - Acids and Bases - Questions & Problems - Page 711: 15.35


The (c) statement is true.

Work Step by Step

- If the solution had a 0.1M strong acid, the pH would be = 1. $-log[0.1] = 1$ But, since the solution is made of a weak acid, the pH will be higher than 1. Therefore: (a) = False and (d) = False - For a pure acid solution, if we ignore the $10^{-14}M$ of $H^+$ from water (which is negligible), the sentence ($[H^+] = [A^-]$) will be always true. Therefore: (b) = False and (c) = True.
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