Cobalt (II) carbonate is slightly soluble in water (Ksp = 1.0 x 10-10). In the presence of an excess of ammonia, Co²+ forms a complex with six ammonia ligands that is somewhat favorable (K₁ = 1.3 x 105). What is the value of the equilibrium constant (Koverall) for the overall reaction that occurs? COCO3 (s) + 6 NH3 (aq) → Co(NH)32+ (aq) + CO3²- (aq) 1.3 x 10-5 3.6 x 10² 1.0 x 10-10 7.7 x 10-16 1.3 x 105

Cobalt (II) carbonate is slightly soluble in water (Ksp = 1.0 x 10-10). In the presence of an excess of ammonia, Co²+ forms a complex with six ammonia ligands that is somewhat favorable (K₁ = 1.3 x 105). What is the value of the equilibrium constant (Koverall) for the overall reaction that occurs? COCO3 (s) + 6 NH3 (aq) → Co(NH)32+ (aq) + CO3²- (aq) 1.3 x 10-5 3.6 x 10² 1.0 x 10-10 7.7 x 10-16 1.3 x 105

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter20: Chemistry Of Selected Transition Elements And Coordination Compounds

Section: Chapter Questions

Problem 42QRT

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Question

Cobalt (II) carbonate is slightly soluble in water (Ksp = 1.0 x 10-10). In the presence of an excess of ammonia, Co²+ forms a complex with six ammonia ligands that is somewhat
favorable (K₁ = 1.3 x 105). What is the value of the equilibrium constant (Koverall) for the overall reaction that occurs?
COCO3 (s) + 6 NH3 (aq) → Co(NH)32+ (aq) + CO3²- (aq)
1.3 x 10-5
3.6 x 10²
1.0 x 10-10
7.7 x 10-16
1.3 x 105

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