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What is the structure of the functional group and the condensed formula for 3,4-dimethyl heptanoic acid?

Answer 1

Sarah Angotti

The ending –oic acid tells you that this is a carboxylic acid.

The functional group of a carboxylic acid is the #"COOH"# group.

Its structure is

and the carbon atom is automatically C-1.

The "heptan" part of the name tells you that the molecule contains a chain of 7 carbon atoms.

So your condensed structural formula starts with

#"C-C-C-C-C-C-COOH"#

Then you attach methyl groups to C-3 and C-4.

You write them in parentheses just after those atoms and get

#"C-C-C-C(CH"_3")C(CH"_3")-C-COOH"#

Finally, you add enough #"H"# atoms to give each #"C"# atom a total of four bonds.

The condensed structural formula is

#"CH"_3"CH"_2"CH"_2"CH(CH"_3")CH(CH"_3")CH"_2"COOH"#

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Answer 2

Madison Anderson

The functional group of 3,4-dimethylheptanoic acid is a carboxylic acid group (-COOH).

The condensed formula for 3,4-dimethylheptanoic acid is: CH3-CH(CH3)-CH2-C(CH3)2-COOH

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Answer from HIX Tutor

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