Answer:
if 5.3 moles of carbon dioxide is produced in the combustion of propane, 1.77 moles of oxygen would have reacted in the reaction.
Step-by-step explanation:
To determine the number of moles of oxygen that reacted in the combustion of propane, you can use the balanced chemical equation for the reaction:
C3H8 + 5 O2 -> 3 CO2 + 4 H2O
In this equation, one mole of propane reacts with five moles of oxygen to produce three moles of carbon dioxide and four moles of water. If you know the number of moles of carbon dioxide produced in the reaction, you can use the balanced equation to determine the number of moles of oxygen that reacted.
For example, if 5.3 moles of carbon dioxide is produced in the reaction, you can use the balanced equation to determine the number of moles of oxygen that reacted:
5.3 moles CO2 / 3 moles CO2/mole O2 = 1.77 moles O2