Textbook Question
Draw the condensed structural or line-angle formulas for the products of the following:
b.
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16. Carboxylic Acids and Their Derivatives
Carboxylic Acid Reactions
Multiple Choice
Name the carboxylate anion formed in the following reaction.
A
2-methylpentanoate
B
4-methylhexanoate
C
4-methylpentanoate
D
2-methylhexanoate
Verified step by step guidance1
Identify the structure of the carboxylic acid in the reaction. The image shows a carboxylic acid with a methyl group on the second carbon of a five-carbon chain, which is 2-methylpentanoic acid.
Understand the reaction type. The reaction shown is a neutralization reaction between a carboxylic acid and a strong base (NaOH), which will form a carboxylate anion and water.
Determine the carboxylate anion formed. In a neutralization reaction, the hydrogen from the carboxylic acid group (-COOH) is replaced by a sodium ion (Na+), forming the carboxylate anion.
Name the carboxylate anion. The carboxylate anion retains the name of the parent carboxylic acid but ends with '-ate'. Therefore, 2-methylpentanoic acid becomes 2-methylpentanoate.
Verify the structure and name. Ensure that the structure matches the name 2-methylpentanoate, which is consistent with the given options and the correct answer provided.
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