C3h8+5o2=3co2+4h2o How Many Moles Of Oxygen Are Necessary To React Completely With Four Moles Of Propane?

Propane is an organic compound. The chemical formula for propane is C₃H₈. It is also categorized as hydrocarbon because it has carbon and hydrogen atoms. When propane is burnt in the presence of air, carbon dioxide and water are produced. One mole of propane is burnt in the presence of five moles of oxygen to yield three moles of carbon dioxide and four moles of water. The chemical equation for the reaction is;

C₃H₈ + 5O₂ ------ > 3CO₂ + 4H₂O

If we have four moles of propane then;

Multiply the above reaction equation with 4 we get;

4C₃H₈ + 4*5O₂ ------ > 4*3CO₂ + 4*4H₂O

4C₃H₈ + 20O₂ ------ > 12CO₂ + 16H₂O

Therefore, 20 moles of oxygen gas are required to react completely with four moles of propane.