Assume that an incorrectly adjusted lawn mower is operated in a garage such that the combustion reaction in the engine i

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Assume that an incorrectly adjusted lawn mower is operated in a
garage such that the combustion reaction in the engine is
C8H18 + 8.5 O2 →8 CO + 9 H2O
At carbon monoxide concentrations of higher than 750 ppm, loss
of consciousness and death could occur quickly. If the dimensions
of the garage are 5×3×3 meters, how many grams of gasoline
(represented as C8H18) must be burned to raise the level of CO in
the air in the garage to 750 ppm by volume at 1 atm and 25°C?
Answer : [19.7 g]
[Atomic weight: C: 12, H: 1, and O: 16]
Please show your work