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Posted by on Sunday, October 3, 2010 at 10:48pm.

If the initial concentration of F(g) is 8.285 mol/L, calculate the % decomposition of F(g) when the reaction comes to equilibrium according to the balanced equation. The value of Kc at 927.0 °C is 370.00. The initial concentration of the reaction products is 0 mol/L.


2F(g) = F2(g)

  • college chemistry - , Sunday, October 3, 2010 at 11:17pm

    You have the balanced equation.
    Set up an ICE chart, substitute into Kc and solve.
    initial:
    F = 8.285 M
    F2 = 0

    change:
    F2 = +x
    F = -2x

    equilibrium:
    F = 8.285-2x
    F2 = x

  • college chemistry - , Monday, October 4, 2010 at 5:12pm

    i don't understand..

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