For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a

Question:

For the reaction below at a certain temperature, it is found that the equilibrium concentrations in a 5.00-L rigid container are [H2] = 0.0500 M, [F2] = 0.0100 M, and [HF] = 0.400 M.
H2(g) + F2(g) ⇌ 2HF(g)
If 0.200 mole of F2 is added to this equilibrium mixture, calculate the concentrations of all gases once equilibrium is reestablished.