14.
The empirical formula of a certain hydrocarbon is CH2. When 0.125 moles of this
hydrocarbon is completely combusted with excess oxygen, it is observed that 8.40 L of
CO2 gas is produced at STP. What is the molecular formula of the unknown hydrocarbon?
(a) CH2
(b) C, H,
(c) C, H
(d) C3H6
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