Carbon monoxide and water vapor are formed when carbon dioxide and hydrogen react. CO2(g) + H2(g) ⇌ CO(g) + H2O(g) The equilibrium constant for the reaction is KC = 2.78 at 167 ℃. If 0.787 mol of carbon dioxide is added to 0.911 mol of hydrogen in a 1.87–L reaction vessel and allowed to react at this temperature, what is the equilibrium concentration (in mol/L) of carbon monoxide?

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