Question: A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 3.191 g is added to a 2.00 L flask containing carbon dioxide,

A mixture of solid calcium oxide, CaO, and solid barium oxide, BaO, weighing 3.191 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 0.689 atm and the final pressure of CO2 gas is 0.303 atm.

What is the mass percentage of CaO in the solid mixture? What is the mass percentage of BaO in the solid mixture?

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