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When 30.6 g of an unknown hydrocarbon is completely burned, 95.9 g of carbon dioxide (CO2) is recovered. A determination of the density of this

When 30.6 g of an unknown hydrocarbon is completely burned, 95.9 g of carbon dioxide (CO2) is recovered. A determination of the density of this hydrocarbon gives a value of 2.48 g/L at STP. What is the molecular formula of this unknown hydrocarbon?  At STP, the pressure is 1 bar and the temperature is 0 oC.

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