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 14.7 - Page 624: c


$N{O_2}^-(aq) + H_2O(l) \lt -- \gt HNO_2(aq) + OH^-(aq)$ $K_b = \frac{[HNO_2][OH^-]}{[N{O_2}^-]}$

Work Step by Step

The ionization equation should describe the transfer of a proton from a water molecule to the base, therefore, the base and the water are the reactants, and the protonated base and a hydroxide ion are the products. The ionization constant expression is based on: $K_b = \frac{[Products]}{[Reactants]}$ * The water doesn't appear, because it is the solvent, and its concentration doesn't matter.
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