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A 1.00 mol sample of N2O4 (g) is placed in a 10.0 L vessel and allowed to reach equilibrium accourding to the equation

N2O4(g) <----> 2NO2(g)

K = .0004

Calculate the equilibrium concentrations of N2O4(g) and NO2(g)

2 answers

M = moles/L =1.00/10L = 0.1M

............N2O4 ==> 2NO2
initial.....0.1M......0
change......-x........+2x
equil......0.1-x.......2x

Substitute equilibrium from ICE chart above and solve for x. 2x will be NO2 and 0l-x will be N2O4.
thank you
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