Help please!! Chemistryy!! Did I answer this right?

The alcohol in “gasoline” burns according to the following equation.

C2H5OH + 3O3 ----> 2CO2 + 3H2O


a) If 25 mol of C2H5OH burns this way, how many moles of oxygen are needed?

b) If 23 mol of carbon dioxide is produced by this reaction, how many moles of oxygen are consumed?


a) 75 moles of Oxygen are needed.

b) 34.5 moles of oxygen are consumed.

2 Answers

  • 9 years ago
    Favorite Answer

    Yes, you did. Simple molar conversions. Nice job!

    Source(s): AP Chem student
  • 9 years ago

    Yep, you're right!

    Moles O2 needed: 3 * 25 = 75 mol

    Moles O2 consumed: (3/2)* 23 = 34.5 mol

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