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    Demonstrating Le Chatelier's Principle

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    Locate an alternative reaction system that you think would be effective at demostrating Le Chatelier's principle. How do you think it compare with the exercise in lab regarding (Copper and Nickel ions, Cobalt ions, Effect of temperature on equilibria) "these were our lab topics", What are the strengths and weaknesses of the system you choose relative to the chemical system contained in this laboratory exercise?

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    Here's a neat one:

    2 CrO4-2 (aq) + 2 H+(aq) <-----> Cr2O7-2 (aq) + H2O (l)

    This is the reaction between chromate ions, CrO4-2 (aq) which are yellow, and dichromate ions, Cr2O7-2 (aq) which are orange.

    Since we have H+ ions on the left side of the equation, all we have to do is adjust the pH of the solution and watch the color shift from yellow to orange and back again.

    If we add drops of HCl to the system, we will ...

    Solution Summary

    Explores an alternative chemistry reaction that demonstrates Le Chatelier's Principle.