Organic Chemistry As a Second Language, 3e: First Semester Topics

Published by John Wiley & Sons
ISBN 10: 111801040X
ISBN 13: 978-1-11801-040-2

Chapter 3 - Acid-Base Reactions - 3.5 Ranking The Four Factors - Problems - Page 69: 3.30


$H_2O$ is more acidic.

Work Step by Step

- Compare the stability of their conjugate bases: $H_2O: OH^-$ $NH_3: NH{_2}^-$ In the first conjugate base, the oxygen is the atom that has the charge. In the second cojugate base, the charge is on the Nitrogen. - Since Oxygen is more electronegative than Nitrogen, the first conjugate base will be more stable. - Therefore, the $H_2O$ is more acidic.
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