Name each compound with the common name, the IUPAC name, or both. Solution. 1  This amide has two carbon atoms and is thus derived from acetic acid. 2  The OH of acetic acid is replaced by an NH 2 group.3  The-ic from acetic (or-oic from ethanoic) is dropped, and-amide is added to give acetamide (or ethanamide in the IUPAC system).4  This amide is derived from benzoic acid. This amide has two carbon atoms and is thus derived from acetic acid. 2  The OH of acetic acid is replaced by an NH 2 group. 3  The-ic from acetic (or-oic from ethanoic) is dropped, and-amide is added to give acetamide (or ethanamide in the IUPAC system). 4  This amide is derived from benzoic acid.
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