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volume of air required to burn the gasoline

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A car gets 9.2 kilometers to a liter of gasoline. Assuming that gasoline is 100% octane (C8H18), which has a density of 0.69 g/cm3, how many liters of air (21% oxygen by volume at STP) will be required to burn the gasoline for a 1250-km trip? Assume complete combustion.

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It finds the volume of air required to burn the gasoline for a 1250 km trip. The solution is detailed and has a '5/5' rating.

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