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8 is not the answer because octane does no refer to the number of hydrogens but rather the number of carbons. c-c-c-c-c-c-c-c as you can see the number of hydrogens that would bond to the carbons is 18.

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The chemical formula of octane is C8H18, consequently the number of carbon atoms is 8.

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12y ago
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15y ago

carbon = 8atoms

hydrogen = 16

double bond = 1

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13y ago

One octane molecule contains 18 hydrogen atoms.

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13y ago
The general formula for the alkane series is Cn H2n+2. For Octane n = 8 (number of C atoms)

8 carbons, 18 hydrogens

That's 8:18, 4:9 or 1:2.25
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14y ago

1-dodecene (or dodec-1-ene) has the chemical formula C12H24; therefore the molecule contain 12 carbon atoms. Dodeca is twelve in the Greek language.

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11y ago

18

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11y ago

8

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Q: What is the ratio of carbon atoms to hydrogen atoms in a molecule of octane?
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