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Procrastinate

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^{2}at a certain temperature. Given the reaction equation H2(g) + F2(g) -> 2HF(g), calculate the equilibrium concentration of HF after 3.00 mol of each component is added to a 1.500 L flask.

I attempted solving it by calculating the concentration of H2 and F2 which were each 2 (3/1.5). Afterwards, I formed the equilibrium expression and multiplied 2 squared (for H2 and F2) with 1.15x10

^{2}. Then I found the square root of the answer since HF would be raised to the power of 2 which was about 21. However, the answer is 1.5M and I don't know how they got that.