You placed 6.35 g of a mixture containing unknown amounts of BaO(s) and MgO(s) in a 3.50-L flask containing CO,(g) at 30.0°C and 750. torr. The solid BaO and MgO in the flask completely reacted to form BaCo,(s) and MgCO,(s), respectively. After the reactions to form BaCO,(s) and M9CO,(s) were completed, the pressure of CO,(g) remaining was 245 torr, still at 30.0°C. Calculate the mass of BaO(s) in the initial mixture in grams. (Assume ideal gas behavior).

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You placed 6.35 g of a mixture containing unknown amounts of
Ba0(s) and MgO(s) in a 3.50-L flask containing CO,(g) at 30.0°C and
750. torr. The solid Bao and MgO in the flask completely reacted to
form BaCo,(s) and MgCO,(s), respectively. After the reactions to form
BaCO,(s) and M9CO,(s) were completed, the pressure of CO,(g)
remaining was 245 torr, still at 30.0°C. Calculate the mass of BaO(s)
in the initial mixture in grams. (Assume ideal gas behavior).
Transcribed Image Text:You placed 6.35 g of a mixture containing unknown amounts of Ba0(s) and MgO(s) in a 3.50-L flask containing CO,(g) at 30.0°C and 750. torr. The solid Bao and MgO in the flask completely reacted to form BaCo,(s) and MgCO,(s), respectively. After the reactions to form BaCO,(s) and M9CO,(s) were completed, the pressure of CO,(g) remaining was 245 torr, still at 30.0°C. Calculate the mass of BaO(s) in the initial mixture in grams. (Assume ideal gas behavior).
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