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24-06-2016
Chemistry

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The empirical formula for ethane is CH3.The molar mass of propane is 30.08 grams per mole. Determine the molecular formula of ethane.

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meerkat18 meerkat18

30-06-2016

The molar formula of a compound can be obtained from the given molar mass and the empirical formula of the compound. In this case, the molar mass is 30.08 grams and the empirical formula is CH3. The molecular mass of CH3 is 15.04 grams. We divide the molar mass to 15.04, the answer is 2. Hence the molecular formula is C2H6.

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