chemistry homework help! Find partial pressure of ammonia at equilibrium?

timer Asked: Dec 29th, 2012

Question Description

a 40 gram sample of ammonium carbonate is placed in an evacuated 3 liter flask and is heated to 400 degrees C. it decomposes to produce water, ammonia, and carbon dioxide gasses according to the equation: (NH4)CO3 <-> H2O + 2NH3 + CO2
Kp=0.295 atm at 400 degrees C.
calculate the partial pressure of the ammonia at equilibrium.

please show all steps in solving! it should equal 1.04 but i dont know how to get there.



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