A 22.63 g sample of solid ammonium hydrogen sulfide is introduced into a 596–mL flask at 52.5 ℃. The flask is sealed and the system is allowed to come to equilibrium. What is the partial pressure (in atm) of hydrogen sulfide in this flask? The equilibrium constant, Kp = 0.424 at 52.5 ℃. Report your answer to THREE significant figures. NH4HS(s) ⇌ NH3(g) + H2S(g)

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