In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoCl42-. Co2+(aq) is pink and CoCl42-(aq) is blue. ... At Low Temperature the pink color predominates. ... ... At High Temperature the blue color is strong. ... If we represent the equilibrium as:... CoCl42-(aq)Co2+(aq) + 4Cl-(aq) We can conclude that: fill in the blank 1 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. fill in the blank 2 2. When the temperature is decreased the equilibrium constant, K: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question. fill in the blank 3 3. When the temperature is decreased the equilibrium concentration of Co2+: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question.
In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoCl42-. Co2+(aq) is pink and CoCl42-(aq) is blue. ... At Low Temperature the pink color predominates. ... ... At High Temperature the blue color is strong. ... If we represent the equilibrium as:... CoCl42-(aq)Co2+(aq) + 4Cl-(aq) We can conclude that: fill in the blank 1 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. fill in the blank 2 2. When the temperature is decreased the equilibrium constant, K: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question. fill in the blank 3 3. When the temperature is decreased the equilibrium concentration of Co2+: A. Increases B. Decreases C. Remains the same D. More information is needed to answer this question.
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 98CWP
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Question
In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion CoCl42-. Co2+(aq) is pink and CoCl42-(aq) is blue.
... At Low Temperature the pink color predominates. ... |
... At High Temperature the blue color is strong. ... |
If we represent the equilibrium as:... CoCl42-(aq)Co2+(aq) + 4Cl-(aq)
We can conclude that:
| fill in the blank 1 | 1. | This reaction is: |
| A. Exothermic | ||
| B. Endothermic | ||
| C. Neutral | ||
| D. More information is needed to answer this question. | ||
fill in the blank 2 |
2. | When the temperature is decreased the equilibrium constant, K: |
| A. Increases | ||
| B. Decreases | ||
| C. Remains the same | ||
| D. More information is needed to answer this question. | ||
fill in the blank 3 |
3. | When the temperature is decreased the equilibrium concentration of Co2+: |
| A. Increases | ||
| B. Decreases | ||
| C. Remains the same | ||
| D. More information is needed to answer this question. |
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