Equilibrium Concentrations BW

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A 1.00L flask was filled with 2.00 moles of gaseous SO₂ and 2.00 moles of gaseous NO₂ and heated. After equilibrium was reached, it was found that 1.30 moles of gaseous NO was present. Assume that the reaction
SO_2(g) + NO_2(g) <--> SO_3(g) + NO_(g)
occurs under these conditions. Calculate the value of the equilibrium constant, K, for this reaction.

When 1.50 mol CO₂ and 1.50 mol H₂ are placed in a 3.00 L container at 395°C, the following reaction occurs:

CO_2(g) + H_2(g)<--> CO_(g) + H₂O_2(g)

If K_c= 0.802, what are the concentrations of each substance in the equilibrium mixture?