A gas mixture contains 10.0 mol of CO and 12.5 mol of O2.
a) Compute the mole fraction of CO in the mixture.
b) The mixture is heated and the CO starts to react with O2 to give CO2 according to the equation: CO(g)+1/2O2->CO2. At equilibrium, 3.0 mol of CO2 is present. Using an ICE table, determine the mole fraction of CO in the new mixture.