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 - Problem Solving Practice 14.2 - Page 616: b


Yes, (b) is the most basic solution.

Work Step by Step

As we have calculated in (a), this is the concentration for $2.0 \times 10^{-5}M$ $HBr$: $[OH^-] = 5 \times 10^{- 10}M$ The most basic solution is the one with the greatest hydroxide concentration. Since (b) has $[OH^-] = 5 \times 10^{- 9}M$, its hydroxide concentration is greater, therefore, (b) is the most basic solution.
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