How many liters of carbon dioxide will go into the air when 642.9 grams of gasoline (C8H18) is burned in complete combustion at STP?
2C8H18 + 25O2 ==> 16CO2 + 18H2O
mols C8H18 inh 642.9 g = grams/molar mass
Use the coefficients to convert mols C8H18 to mols CO2.
L CO2 = mols CO2 x 22.4 L/mol = ?