In the contact method, the sulfuric acid is manufactured by first oxidizing SO2 to SO3, which is then reacted with water. The reaction of SO2 with O2 is below.
2 SO2(g) +O2(g) =2SO3(g)
A 2.000-L flask was filled with 0.0411 molSO2 and 0.0206 molO2. At equilibrium at 869 K,the flask contained 0.0297 molSO3. determine the each substance were in the flaskat equilibrium?