300cm³ of a gaseous hydrocarbon diffuses through a porous pot in 450 seconds. The same volume of hydrogen can diffuse in 115 seconds under the same condition. Calculate the molar mass of the hydrocarbon (H=1)

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explanation:

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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