# college chemistry

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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 -

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 -

i don't understand..

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