In Part I the reaction you observed was Mg(OH)2 (s) Mg2+ (aq) + 2 OH- (aq). Compare the colors you observed in the experiment and answer these questions:
A. Which way should the equilibrium shift when HCl is added? How do your results support your answer?
Shift to left due to increase in Cl– concentration. This is known as the common ion effect on solubility.
B. Which way should the equilibrium shift when Na2EDTA is added? How do your results support your answer?
C. Is this reaction endothermic or exothermic? How do you know?
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You don't provide enough information for me to know what you did and I certainly don't know the results of your experiment.
1 answer