What is the value of kc for the decomposi- tion of ammonium, Ask an Expert

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A 27 g sample of ammonium carbamate (NH4(NH2CO2)), was placed in an evacuated 0.25 L flask and kept at 25?C. At equilibrium, 16.4 mg of CO2 was present.
NH4(NH2CO2)(s) ?? 2 NH3(g) + CO2(g) .
What is the value of Kc for the decomposi- tion of ammonium carbamate into ammonia and carbon dioxide?

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