Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 4 - Reactions in Aqueous Solution - Exercises: 4.69a

Answer

K2CrO4 has the highest concentration of potassium ions.

Work Step by Step

0.20M KCl, 0.15 M K2CrO4 or 0.080M K3PO4 in the 0.20M KCl, for KCl there is 1 mol of K for each mole of KCl so you have 0.20 M K+ in the 0.15 M K2CrO4, there are 2 moles of K for each mole of K2CrO4 so you have 0.30M K+ in the 0.080M K3PO4 there are 3 moles of K for each mole of K3PO4 so you have 0.24M K+ The highest of these is the K2CrO4 at 0.30M
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