In a hydrogenation experiment, 50.00 grams of a straight-chain hydrocarbon containing 8 carbon atoms reacts with 1.829 grams of hydrogen gas.The hydrocarbon probably has the chemical formula

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The molecular formula of the hydrocarbon can be determined by calculating the amount of hydrogen that reacts, which indicates the degree of unsaturation. The molar mass of hydrogen (H2) is approximately 2 g/mol, so 1.829 grams of hydrogen gas corresponds to approximately 0.9145 moles of hydrogen. This amount of hydrogen would be sufficient to hydrogenate a hydrocarbon with 4 double bonds (since each double bond requires 1 mole of H2 to be hydrogenated). A straight-chain hydrocarbon with 8 carbon atoms and 4 double bonds would have the formula C8H14, which corresponds to choice C.

In a Hydrogenation Experiment, 50