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Alkanoic Acids

Alkanoic Acids. Carboxyl functional group. They look like alkanes but contain a carboxyl (COOH) group. Same names as alkanes but end in “oic”. e.g. first alkanoic acid is METHANOIC ACID. e.g.  Full structural formula. HCOOH Or HCO 2 H.  Shortened structural formula. HCOOH.

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Alkanoic Acids

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  1. Alkanoic Acids

  2. Carboxyl functional group • They look like alkanes but contain a carboxyl (COOH) group. • Same names as alkanes but end in “oic”. e.g. first alkanoic acid is METHANOIC ACID. e.g.  Full structural formula HCOOH Or HCO2H  Shortened structural formula

  3. HCOOH CH3COOH CH3CH2COOH CH3CH2CH2COOH or CH3(CH2)2COOH

  4. CH3-(CH2)3-COOH CH3-(CH2)4-COOH CH3-(CH2)5-COOH CH3-(CH2)6-COOH

  5. Naming Alkanoic Acids Rules • Count the number of atoms in the carbon chain to give the name of the parent alkanol. 2. Remove the –ol ending of the parent alkanol and replace it by –oic acid.

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