Draw the structural formula for Pentanoic acid

Explanation

To draw the structural formula for pentanoic acid, follow these steps:

### Step 1: Identify the number of carbon atoms
Pentanoic acid has "pent" in its name, which indicates that it contains 5 carbon atoms.

**Hint:** The prefix "pent-" refers to the number of carbon atoms in the main chain.

### Step 2: Determine the functional group
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