How do i do these chemistry problems?

P

Progalist

New member
I'm a little confused on how to figure these problems out -_- Could anyone please help me?

1. Write the mass action expressions for each of the following reactions.
COCl2(g) <-> CO(g) + Cl2(g)

P4(g) + 6H2(g) <-> 4PH3(g)

2. For the following reaction ------> 2H2(g) + S2(g) <-> 2H2S(g)......the equilibrium concentrations are 0.15 M for H2S, 0.10 M for H2, and 0.051 M for S2. What is the equilibrium constant? (include the mass action expression)

Thanks! :)
 
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