Sulfur dioxide and oxygen react to form sulfur trioxide as follows

Question

2SO_2(g) + O_2(g) ⇌ 2SO_3(g)
1 mole of sulfur dioxide is mixed with 0.5 moles of oxygen gas in a 1 L container. There is 0.9 mol of SO_3 at equilibrium. Calculate the following.

a) Equilibrium concentrations of sulfur dioxide and oxygen.
b) Equilibrium constant for this reaction.

Answer 1

Anyone can check if a) = [SO_2) = 0.1M
[O_2] = 0.05M
and b) = 1620

Thanks.

Answer 2

I agree.