Cd(OH)2 is an insoluble salt with Ksp= 2.0×10–14. a.Calculate the minimum concentration of hydroxide ions (OH–) required to start precipitating a 0.10 M solution of Cd2+ ions as Cd(OH)2. b.A solution contains 0.10 M Cd2+ and 0.10 M NH3. What should be the concentration of NH4+ added to prevent the precipitation of Cd(OH)2? Assume that volume of the solution remains unchanged. The Kb of NH3 is 1.8×10–5.
Cd(OH)2 is an insoluble salt with Ksp= 2.0×10–14. a.Calculate the minimum concentration of hydroxide ions (OH–) required to start precipitating a 0.10 M solution of Cd2+ ions as Cd(OH)2. b.A solution contains 0.10 M Cd2+ and 0.10 M NH3. What should be the concentration of NH4+ added to prevent the precipitation of Cd(OH)2? Assume that volume of the solution remains unchanged. The Kb of NH3 is 1.8×10–5.
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter15: Solubility And Complex Lon Equilibria
Section: Chapter Questions
Problem 6RQ
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Cd(OH)2 is an insoluble salt with Ksp= 2.0×10–14.
a.Calculate the minimum concentration of hydroxide ions (OH–) required to start precipitating a 0.10 M solution of Cd2+ ions as Cd(OH)2.
b.A solution contains 0.10 M Cd2+ and 0.10 M NH3. What should be the concentration of NH4+ added to prevent the precipitation of Cd(OH)2? Assume that volume of the solution remains unchanged. The Kb of NH3 is 1.8×10–5.
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