How many mol of O2 will react with 3 mol of ethanol?

Answer 1

This is na combustion reaction where the balanced equation is: C₂H₅OH + 3O₂---> 2CO₂ + 3H₂O. All combustion reactions produce CO₂ + H₂O. So 3 moles of O₂ react with 1 mole of ethanol, so 9 moles of O₂ will react with 3 moles of C₂H₅OH (ethanol).