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 below
NH
4HS(s)
NH
3(g) + H
2S(g), K
p = 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?
◦ 0.917 g
◦ 1.37 g
◦ 2.74 g
◦ 0.581 g
◦ 0.452 g