I need help with a few chemistry questions.

Calculate the value of Keq for the following reaction at equilibrium.
2NClO(g) 2NO(g) + Cl2 (g)
An analysis of the equilibrium mixture in a 1-L flask gives the following results: NClO, 1.6 mol; NO, 6.4 mol; Cl2, 0.49 mol

Question

I need help with a few chemistry questions.

Calculate the value of Keq for the following reaction at equilibrium. 
2NClO(g) 2NO(g) + Cl2 (g) 
An analysis of the equilibrium mixture in a 1-L flask gives the following results: NClO, 1.6 mol; NO, 6.4 mol; Cl2, 0.49 mol

aaronq · Answer

set up the equilibrium expression

K=[products]/[reactants]

eg. aA + bB -> cC 

$$K=\frac{ [C]^{c} }{[A]^{a}[B]^{b} }$$