Solid ammonium hydrogen sulfide is introduced into a 2.00-L flask, and the flask is sealed. If this solid decomposes according to the equation NH4HS(s)
NH3(g) + H2S(g) , KP = 0.108 at 25°C,
What is the minimum mass of ammonium hydrogen sulfide that must be present in the flask initially if equilibrium is to be established at 25°C? (R = 0.08206 L • atm/K • mol)
A) 0.917 g
B) 1.37 g
C) 2.74 g
D) 0.581 g
E) 0.452 g
Correct Answer:
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