theone42 theone42

13-06-2016
Chemistry

Answered

How many moles of ethane (C2H6) would be needed to react with 62.3 grams of oxygen gas?

Unbalanced equation: C2H6 + O2 → CO2 + H2O

Show, or explain, all of your work along with the final answer.

Verified Answer :

Anonymous Anonymous

21-06-2016

The combustion of ethane is expressed in the balanced reaction C2H6 + 3.5O2= 2CO2 + 3 H2O. Given the mass of oxygen gas, we get the moles of ethane needed by converting this mass to mole (dividing my 32 g/mol), then multiply by 1/3.5 (stioch ratio) and the molar mass of ethane (30 g/mol). The answer is 16.69 grams ethane.

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