A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 3.972 g is added to a 2.00 L flask containing carbon dioxide, CO2, at 30 ∘C. The CaO and BaO react completely with the carbon dioxide gas to form solid CaCO3 and BaCO3, respectively. Calculate the moles of CO2 consumed by the reaction if the initial pressure of CO2 gas was 0.828 atm and the final pressure of CO2 gas is 0.361 atm.