What is the IUPAC name for the compound with the formula C4H9-COOH?

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Question: What is the IUPAC name for the compound with the formula C4H9-COOH?

Options:

Correct Answer: Butanoic acid

Solution:

The compound has four carbons in the longest chain and a carboxylic acid functional group, hence it is Butanoic acid.

What is the IUPAC name for the compound with the formula C4H9-COOH?

What is the IUPAC name for the compound with the formula C4H9-COOH?

Step 1: Identify the formula given, which is C4H9-COOH.
Step 2: Recognize that COOH is the carboxylic acid functional group.
Step 3: Count the number of carbon atoms in the longest chain. The C4H9 part indicates there are 4 carbon atoms.
Step 4: Determine the name of the longest carbon chain with 4 carbons. This is called Butane.
Step 5: Since the compound has a carboxylic acid group (COOH), we change the 'e' in Butane to 'oic' to form Butanoic acid.
Step 6: Conclude that the IUPAC name for the compound C4H9-COOH is Butanoic acid.

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