Final answer:
To react completely with 4.044 moles of propane, 20.22 moles of oxygen are necessary.
Step-by-step explanation:
To determine the number of moles of oxygen necessary to react completely with 4.044 moles of propane, we first need to examine the balanced chemical equation for the reaction. The combustion of propane can be represented by the equation:
C3H8 + 5O2 → 3CO2 + 4H2O
From the equation, we can see that 1 mole of propane reacts with 5 moles of oxygen. Therefore, in order to find the number of moles of oxygen needed to react with 4.044 moles of propane, we can use a simple mole ratio calculation:
4.044 moles of propane × (5 moles of oxygen / 1 mole of propane) = 20.22 moles of oxygen