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Submitted by rocktown1990 on Tue, 02/28/2012 - 06:37


Use Le Châtlier’s Principle to determine which direction the equilibrium will shift if the following unbalanced
reactions are disturbed by the given change.  Also use the reaction quotient to justify your answer. 
a. The addition of NH3 (which complexes with Ag+to form Ag(NH3)2+) to the equilibrium: 
                         Cl-(aq) + Ag+(aq) ⇌ AgCl(s)

Removing a reactant will cause the equilibrium to shift to the left. Not sure about quotients. You could say that rate of forward reaction is proportional to [Ag+][Cl-]. Any decrease in [Ag+] will reduce rate of forward reaction while reverse continues until equilibrium is re-established.

Submitted by kingchemist on Tue, 02/28/2012 - 09:11 Permalink