NH4HS(s) <-> NH3(g) + H2S(g)

Question

An equilibrium mixture of this reaction at a certain temperature was found to have (NH3)=.268 and (H2S)=.360
What is the value of the equilibrium constant at this temperature?

Answer 1

I posted these two questions to Sara about 30 min ago.
1. Units?
2. Why aren't the values the same?