Question

At a certain temperature, the equilibrium constant Kc is 0.154 for the reaction 2SO2(g) + O2(g)<-> 2SO3(g)
What concentration of SO3 would be in
equilibrium with 0.250 moles of SO2 and 0.885 moles of O2 in a 1.00 liter container at this temperature? Note: These latter moles are the equilibrium values.
Answer in units of M

Answer 1

Substitute the equilibrium value into Kc and solve for the one unknown.

Answer 2

if 96g so2 is added to 2 moles of oxygen at stp,calculate the mass of so3 that is formed