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For the following reaction at a certain temperature H₂(g) + F₂(g) ⇌ 2HF(g) the equilibrium concentrations...

For the following reaction at a certain temperature H₂(g) + F₂(g) ⇌ 2HF(g) the equilibrium concentrations in a 10.00-L rigid container are [H₂] = 0.0600 M, [F₂] = 0.0200 M, and [HF] = 0.620 M. If 0.610 moles of F₂ is added to the equilibrium mixture, calculate the concentration of H₂ after equilibrium is reestablished.

H₂(g) + F₂(g) ⇌ 2HF(g)

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