38) T = 21.8°C Keq = 7.0 x 10-2
NH4HS(s) NH3(g) + H2S(g)
Pi(atm) 0 0
Pc(atm) +x +x
Pe(atm) x x
Keq = PNH3e x PH2Se
7.0 x 10-2 = x · x = x2
PNH3e = PH2Se= 0.26 atm