Take 23mols and multiply it by the atomic mass of Li:
23mol * 6.94g/mol = 159.62g
2C6H14 + 19O2 ===> 12CO2 + 14H2O ... balanced equation
moled hexane present = 2.6 g x 1 mole/130 g = 0.02 moles
moles O2 present = 5.29 g x 1 mole/32 g = 0.165 moles
Which reactant is limiting? Hexane = 0.02/2 = 0.01; O2 = 0.165/19 = 0.0087
Thus O2 is limiting...
moles of H2O that can be produced =0.165 moles O2 x 14 H2O/19 CO2 = 0.122 moles H2O
Mass H2O = 0.122 moles x 18 gm/mole = 2.20 g (to 3 sig. figs.)
Carbon dioxide, water, energy
Gasoline is made up of almost entirely of hydrocarbons. Hydrocarbons is a molecule made up of carbon and hydrogen. Some of the compunds present in gasoline also contain small amounts of other elements, including sulfur, nitrogen, and oxygen.
Hope this helps!!!
