Chapter 12, Problem 80AE

For the following reaction at a certain temperature

${\text{H}}_2\left(g\right)+{\text{F}}_2\left(g\right)\rightleftharpoons 2\text{HF}\left(g\right)$

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. If 0.200 mole of F₂ is added to this equilibrium mixture, calculate the concentrations of all gases once equilibrium is reestablished.