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Multiple Choice
Provide a condensed structural formula for a fatty acid with 18 carbons (18:0) and give its common name.
A
Storic acid
B
Palmitic acid
C
Stearic acid
D
Palmitoleic acid
Verified step by step guidance
1
Identify the structure of the fatty acid: A fatty acid with 18 carbons and no double bonds is known as a saturated fatty acid.
Recognize the common name: The common name for a saturated fatty acid with 18 carbons is Stearic acid.
Analyze the condensed structural formula: The condensed structural formula for Stearic acid is CH₃(CH₂)₁₆COOH.
Understand the structure: The structure consists of a carboxylic acid group (COOH) attached to a long hydrocarbon chain of 16 methylene groups (CH₂) and a terminal methyl group (CH₃).
Verify the images: The first image matches the structure of Stearic acid, confirming the condensed structural formula as CH₃(CH₂)₁₆COOH.