Chemistry: The Central Science (13th Edition)

by Brown, Theodore E.; LeMay, H. Eugene; Bursten, Bruce E.; Murphy, Catherine; Woodward, Patrick; Stoltzfus, Matthew E.

Published by Prentice Hall

ISBN 10: 0321910419

ISBN 13: 978-0-32191-041-7

Chapter 17 - Additional Aspects of Aqueous Equilibria - Exercises - Page 770: 17.51a

Answer

It does not appear in the solubility product expression because it is constant.

Work Step by Step

The concentration of undissolved solid is clearly constant as the solid is by definition not dissolved in the solution. Equilibrium expressions only include aqueous and gaseous products, so the concentration of undissolved solid is not included.

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