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13, 15.

The equilibrium constant, K, for the following reaction is 1.80x104 at 298 K. NH4HS(s) -NHj(g) + H2S(g) An equilibrium mixture of the solid and the two gases in a 1.00 L flask at 298 K contains 0.312 mol NH^HS, 1.34x102 M NH3 and 1.34x102 M H2S. If the concentration of NH3(g) is suddenly increased to 2.34x102 M, what will be the concentrations of the two gases once equilibrium has been reestablished? [NH3] = [H2S]

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