Question

Gasohol is a fuel containing ethanol (C2H5OH) that burns in oxygen (O2) to give CO2 and water. How many moles of O2 are needed to completely react with 2.50 moles of ethanol?
C2H5OH + 3O2 ==> 2CO2 + 3H2O
2.5 moles C2H5OH x (3 moles O2/1 mole C2H5OH) = 2.5 x (3/1) = ?

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