Answer :
Final answer:
To completely burn 5 moles of propane, you would need 25 moles of oxygen.
Explanation:
The given equation is: C3H8 + O2 → H2O + CO2
To balance the equation, we need to ensure that the number of atoms of each element is the same on both sides. Starting with carbon, we have 3 carbon atoms on the left side and 1 carbon atom on the right side. To balance it, we add a coefficient of 3 in front of CO2:
C3H8 + O2 → 3H2O + 3CO2
Next, we balance the hydrogen atoms by adding a coefficient of 4 in front of H2O:
C3H8 + O2 → 4H2O + 3CO2
Finally, we balance the oxygen atoms by adding a coefficient of 5 in front of O2:
C3H8 + 5O2 → 4H2O + 3CO2
The balanced equation indicates that to completely burn 1 mole of propane (C3H8), we need 5 moles of oxygen (O2). Therefore, to burn 5 moles of propane, we would need 5 times the amount of oxygen, which is 5 * 5 = 25 moles of oxygen.
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