The formation of a complex between cobalt (III) cation and six ammonia (NH3) ligands is very favorable (K₁ = 2.3 x 1033). Given an initial cobalt concentration of 0.0235 M and an initial ammonia concentration of 0.206 M, what will be the concentration of free cobalt ion (Co3+) at equilibrium? 1.2 x 10:27 M 1.6 x 10:34 M 3.3 x 10-41 M 4.3 x 10-34 M 1.4 x 10-28 M

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Chapter12: Chemical Equilibrium
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The formation of a complex between cobalt (III) cation and six ammonia (NH3) ligands is very favorable (K₁= 2.3 x 1033). Given an initial cobalt concentration of 0.0235 M and an
initial ammonia concentration of 0.206 M, what will be the concentration of free cobalt ion (Co3+) at equilibrium?
1.2 x 10-27 M
1.6 x 10-34 M
3.3 x 10-41 M
4.3 x 10-34 M
1.4 x 10-28 M
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
7.7 x 10-16
1.3 x 105
1.0 x 10-10
Transcribed Image Text:The formation of a complex between cobalt (III) cation and six ammonia (NH3) ligands is very favorable (K₁= 2.3 x 1033). Given an initial cobalt concentration of 0.0235 M and an initial ammonia concentration of 0.206 M, what will be the concentration of free cobalt ion (Co3+) at equilibrium? 1.2 x 10-27 M 1.6 x 10-34 M 3.3 x 10-41 M 4.3 x 10-34 M 1.4 x 10-28 M 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 7.7 x 10-16 1.3 x 105 1.0 x 10-10
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