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NiO(s) + CO(g) (equlibrium equation arrows going both way) Ni(S) + CO2(g)

Kc = 4.0 X 10^3 at 1500 K

If the mixture of solid nickle(II) oxide and 0.20 M carbon monoxide is allowed to come to equilibrium at 1500 K, what will be the equilibrium concentration of CO2?

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