± Heterogeneous Equilibrium of Ammonium Bisulfide - Copy
Ammonium bisulfide, NH4HS, forms ammonia, NH3, and hydrogen
sulfide, H2S, through the reaction
NH4HS(s)⇌NH3(g)+H2S(g)
This reaction has a Kp value of 0.120 at 25 ∘C.
An empty 5.00-L flask is charged with 0.300 g of pure H2S(g), at
25 ∘C.
Part A
What is the initial pressure of H2S(g) in the flask?
Express your answer numerically in atmospheres.
Hints
P =
4.31×10−2
atm
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Addition of ammonium bisulfate
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