1. A 454.8g sample of a mixture containing 70.00% CH4 and 30.00% C2H6 was combusted with oxygen. What is the theoretical yield of carbon dioxide (in grams) for this reaction?
CH4 + 2 O2 > CO2 + 2 H2O
2 C2H6 + 7 02
--> 4CO2 + 6H2O

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