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Ethanol is an alcohol. The general formula for alcohols is CnH2n+1OH To know what the value of "n" is, you need to find the number of carbon atoms it has, like this: # 1 CARBON ATOMS: Eth- # 2 CARBON ATOMS: Meth- # 3 CARBON ATOMS: Prop- # 4 CARBON ATOMS: But- # 5 CARBON ATOMS: Pent- # 6 CARBON ATOMS: Hex- # 7 CARBON ATOMS: Hept- # 8 CARBON ATOMS: Oct- ...and so on! plus the terminations of the family of the hyrocarbons it is from: * alkanes: -ane. * alkenes: -ene. * alcohols: -anol. Therefore as ethanol has 2 carbon atoms, its formula would be: C2H5OH

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17y ago

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