20 In an aqueous chloride solution cobalt(II) exists in equilibrium with the complex ion COCI42-.Co2+(aq) is pink and CoCl42 (aq) is blue.At Low Temperature the pink colorpredominates.At High Temperature the blue color isstrong.If we represent the equilibrium as:CoCl,2-(aq) = Co²+(aq) + 4CI"(aq)We can conclude that:1. This reaction is:A. ExothermicB. EndothermicC. NeutralD. More information is needed to answer this question.2. When the temperature is decreased the equilibrium constant, K: [References]We can conclude that:1. This reaction is:A. ExothermicB. EndothermicC. NeutralD. More information is needed to answer this question.2. When the temperature is decreased the equilibrium constant, K:A. IncreasesB. DecreasesC. Remains the sameD. More information is needed to answer this question.When the temperature is decreased the equilibrium concentration of3. CoCl42-:A. IncreasesB. DecreasesC. Remains the sameD. More information is needed to answer this question.

Answered: Image /qna-images/answer/e1386f0f-1a8a-45b1-acf8-cbdd9f888c76.jpg

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: CoCl,2-(aq) Co2+(aq) + 4CI-(aq) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the temperature is decreased the equilibrium constant, K:

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: CoCl,2-(aq) Co2+(aq) + 4CI-(aq) We can conclude that: 1. This reaction is: A. Exothermic B. Endothermic C. Neutral D. More information is needed to answer this question. 2. When the temperature is decreased the equilibrium constant, K:

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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