I am not sure on these 2:
1. When solid NH4HS and .2 mol NH3 were placed into a 2 L vessel at 24 deg C, the equilibrium NH4HS -> NH3 + H2S for which Kc = 1.6 * 10^-4 was reached. What are the equilibrium concentrations of NH3 and H2S?
Since NH3 and H2S are in the same mole ratio, is the equilibrium concentration for both just Kc/2? Since Kc = [NH3][H2S]?
2. A reaction mixture is prepared by mixing .1 mol SO2, .2 mol NO2, .1 mol NO, .150 mol SO3 in a 5 L reaction vessel. The reaction SO2 + NO2 -> NO + SO2 is allowed to reach equilibrium at 460 deg C, when Kc = 85.0
What is the equilibrium concentration of each substance?
Not sure on this one... it gives you all the moles etc. before + the volume, but also Kc. Is it just .1/5 = M SO2, .2/5 = M NO2? That seems too easy..
Thanks for anyone who knows how to do these.