1 USA gallon = 3.7854liters
       500gallon =
500*3.7854 = 1892.7liters
mass of octane = volume * density
                         Â
= 1892.7*703 = 1330568g of octane
molar mass of octane = 114g/mole
no of moles of octane = W/G.M.Wt = 1330568/114 = 11671.65
moles
2C8H18+ 25O2--------> 16Co2 + 18H2O
2 moles of C8H18 on combustion to produced 16 moles of Co2
11671.65 moles of C8H18 to gives = 16*11671.65/2 =93373.2moles
of Co2
mass of Co2 = no of moles * gram molar mass
                    Â
= 93373.2*44 = 4108420.8g = 4108Kg  = 4108*0.00110231 =
4.53tons
            Â
