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Experiment 19, Equilibrium Constants and LeChatelier's Principle: CoCl₂

Purposed topic: Equilibrium

Objective: To determine whether or not LeChatelier's principle is consistent

List of factors that will be used for testing

1. Addition of water

2. Addition and removal of Chloride

3. Changes in temperature

Brief Background Information

Cobalt chloride in water is a well-known equilibrium system because two spices in which containing the same amount of cobalt can have different colours

The equilibrium expression for this system is

[Co(H₂O)₆]²⁺(aq) + 4Cl^-(aq) ↔ [CoCl₄]^2-(aq) + 6H₂O(l)

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Experimental Procedures

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Pictures

ps. When the experiment conducts, the source of pictures will come from 13MP Samsung Note 3 camera, d/m/y, by Dulyarat Sathainthammanee(D.S.).

References