Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 17 Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria - Study Questions - Page 677c: 70



Work Step by Step

$[Mg^2+]=0.10\ M\times 75\ mL/(75+25)\ mL=0.075\ M$ $[OH^-]=0.010\ M\times 25\ mL/(75+25)\ mL=0.0025\ M$ $Qsp=[Mg^{2+}][OH^-]^2$ $Qsp=0.075\dot{}0.0025^2=6.25\dot{}10^{-6}>Ksp=5.6\dot{}10^{-12}$ Since Qsp is bigger than Ksp, precipitation will occur.
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