Consider the following reaction:
NH4HS(s)⇌NH3(g)+H2S(g)
An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.272M and [H2S]= 0.365M .

What is the value of the equilibrium constant (Kc) at this temperature?

Question

Consider the following reaction: 
NH4HS(s)⇌NH3(g)+H2S(g) 
An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.272M and [H2S]= 0.365M .

What is the value of the equilibrium constant (Kc) at this temperature?

aaronq · Answer

if the equation is balanced, write the equilibrium expression:

K=[Products]/[reactants]

anonymous · Answer

im just confused because i only have the equilibrium concentration for 2 of the three.  so ill have one equation with two unknowns

aaronq · Answer

you never include solids or water in the expression.