7. Propane, C₂H₁, has become a popular gas to use in fireplaces.
When C₂H₂ gas mixes with oxygen, O₂, it produces a flame along with carbon dioxide, CO2, and
water, H₂O.
A manufacturer of a new propane fireplace wants to determine the amount of CO₂ produced during
the combustion of C3H8. In an experiment in their laboratory, 20.0 g of O₂ were consumed during the
combustion of C3H8.
The balanced equation for the combustion of C3H8 is shown below.
C3H8 +5 0₂ 3 CO₂ + 4 H₂O + energy
What mass of CO₂ was produced in this experiment?
Show all your work.