2+ In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoC142. Co²+ (aq) is pink and CoCl2(aq) is blue. At low temperature the pink color predominates. At high temperature the blue color is strong. If we represent the equilibrium as: 2+ CoCl2(aq) Co²+ (aq) + 4C1¯ (aq) We can conclude that: 1. This reaction is O exothermic. O endothermic. Oneutral. O More information is needed to answer this question. 2. When the temperature is decreased the equilibrium constant, K: O increases. decreases. remains the same. O More information is needed to answer this question. 3. When the temperature is decreased the equilibrium concentration of Co²+: Prev

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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2+
In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoC142. Co²+ (aq) is pink and CoCl2(aq) is blue.
At low temperature the pink color predominates. At high temperature the blue color is strong.
If we represent the equilibrium as:
2+
CoCl2(aq) Co²+ (aq) + 4C1¯ (aq)
We can conclude that:
1. This reaction is
O exothermic.
O endothermic.
Oneutral.
O More information is needed to answer this question.
2. When the temperature is decreased the equilibrium constant, K:
O increases.
decreases.
remains the same.
O More information is needed to answer this question.
3. When the temperature is decreased the equilibrium concentration of Co²+:
Prev
Transcribed Image Text:2+ In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoC142. Co²+ (aq) is pink and CoCl2(aq) is blue. At low temperature the pink color predominates. At high temperature the blue color is strong. If we represent the equilibrium as: 2+ CoCl2(aq) Co²+ (aq) + 4C1¯ (aq) We can conclude that: 1. This reaction is O exothermic. O endothermic. Oneutral. O More information is needed to answer this question. 2. When the temperature is decreased the equilibrium constant, K: O increases. decreases. remains the same. O More information is needed to answer this question. 3. When the temperature is decreased the equilibrium concentration of Co²+: Prev
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