Chemistry, 26.10.2020 05:30 issacbeecherpebpyl

PLEASE HELP: A 2.000 gram sample containing graphite (carbon) and an inert substance was burned in oxygen and produced a mixture of carbon dioxide and carbon monoxide in the mole ration 2.00:1.00. The volume of oxygen used was 747.0 ml at 1092 K and 12.00 atm. Calculate the percentage by weight of graphite in the original mixture.

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