Note: Well C-2 contains CoCl2 with water added to it. 160 EQULO404: Studying Che

Question

Note: Well C-2 contains CoCl2 with water added to it. 160 EQULO404: Studying Chemical Equilibria and Applying Le Chatelier's Principle Usine Micmursla T 161 EQUL0404: Sudying Chemical Equilbria and Applying Le Chatelier's Principle Using Microscale T (4o) Predict the directon in which the equilbrium should shift when you add ethyl alcohol to the mixture in Well C-2. Briefly explain. (47) Briefly explain how your observations do or do not support your prediction in (4e6) (48) Based on your observations of heating the mixture from Well C-2, is the forward reaction endothermic or exothermic? Briefly explain (49) Write the net ionic equation for this equilibrium again, but include heat in the equation this time.

Explanation / Answer

Well C-2 CoCl2 in water

(46) when ethyl alcohol is added to the well. CoCl2 dissolves in ethyl alcohol. We get homogeneous solution. Direction is towards the right handside. Solution color changes to blue.

(47) The observation of blue coloration indicated the reaction has moved in the foward direction as expected.

(48) Heating the system in Well C-2, is an endothermic reaction. Heat helps reaction proceed in the forward direction.

(49) net-ionic equation,

[Co(H2O)6Cl2] (pink) + heat ---> [Co(H2O)2Cl2] (blue) + 4H2O

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