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You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a...

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Chemistry

You placed 6.35 g of a mixture containing unknown amounts ofBaO(s) and MgO(s) in a 3.50-L flask containing CO₂(g) at 30.0°C and750. torr. The solid BaO and MgO in the flask completely reacted toform BaCO₃(s) and MgCO₃(s), respectively. After the reactions toform BaCO₃(s) and MgCO₃(s) were completed, the pressure of CO₂(g)remaining was 245 torr, still at 30.0°C. Calculate the mass ofBaO(s) in the initial mixture. (Assume ideal gas behavior).

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