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 652b: 38b


"Base X" is the stronger base because its $K_b$ is larger.

Work Step by Step

When comparing the strength of bases, the one with a higher $K_b$ value is considered stronger. Analyzing the Kb values: $K_b$ (Base X) = $1 \times 10^{-4}$ and $K_b$ (Base Y) = $4 \times 10^{-5}$ Since $1 \times 10^{-4} > 4 \times 10^{-5}$, the "Base X" is stronger.
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