Draw a structural formula for pentanoic acid. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms.

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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### Drawing the Structural Formula for Pentanoic Acid

#### Instructions:
- **You do not have to consider stereochemistry.**
- **You do not have to explicitly draw H atoms.**

#### Tools Available:
The interface provides a range of drawing tools for constructing the structural formula:
- **Selection tool** (hand icon)
- **Eraser**
- **Bond tool (single, double, triple, or other types of bonds)**
- **Ring structures (different kinds)**
- **Chain tool**
- **Plus and minus tools for zooming in and out**
- **Various carbon-based structures and heteroatoms**

The tool being demonstrated in the image is from **ChemDoodle**, a popular software for drawing chemical structures.

#### Example of a Partially Drawn Structure:
- The workspace shows `CH₄` (Methane) as an initial example in the workspace.

#### Step-by-Step Guide to Drawing Pentanoic Acid:
1. **Start with a Carbon Chain**:
   - Pentanoic acid has a backbone of five carbon atoms, arranged in a chain. Using the carbon chain tool, draw a zigzag line representing 5 carbon atoms in sequence.
   
2. **Add Functional Group**:
   - At the end of the carbon chain, add a carboxyl group (-COOH) to the first carbon, representing the acid part of pentanoic acid.
   
3. **Complete the Structure**:
   - Ensure that all other bonds not part of the backbone or COOH group are saturated with hydrogen atoms (not explicitly needed in the drawing).

#### Final Structure Representation:
The final structure should look like this (without explicitly drawn hydrogen atoms):

```
    H   H   H   H
    |   |   |   |
H - C - C - C - C - C = O
                |   |
                H   OH
```

This structure represents pentanoic acid (CH₃CH₂CH₂CH₂COOH).

### Additional Tips:
- **Use the appropriate bond tools** to ensure clarity in structural representation.
- **Check all valencies** to make sure the structure is accurate.
- **Utilize zoom and cleaning tools** to tidy up your drawing.

This exercise helps understand organic chemistry principles and the structural composition of carboxylic acids, a crucial functional group in organic compounds.
Transcribed Image Text:### Drawing the Structural Formula for Pentanoic Acid #### Instructions: - **You do not have to consider stereochemistry.** - **You do not have to explicitly draw H atoms.** #### Tools Available: The interface provides a range of drawing tools for constructing the structural formula: - **Selection tool** (hand icon) - **Eraser** - **Bond tool (single, double, triple, or other types of bonds)** - **Ring structures (different kinds)** - **Chain tool** - **Plus and minus tools for zooming in and out** - **Various carbon-based structures and heteroatoms** The tool being demonstrated in the image is from **ChemDoodle**, a popular software for drawing chemical structures. #### Example of a Partially Drawn Structure: - The workspace shows `CH₄` (Methane) as an initial example in the workspace. #### Step-by-Step Guide to Drawing Pentanoic Acid: 1. **Start with a Carbon Chain**: - Pentanoic acid has a backbone of five carbon atoms, arranged in a chain. Using the carbon chain tool, draw a zigzag line representing 5 carbon atoms in sequence. 2. **Add Functional Group**: - At the end of the carbon chain, add a carboxyl group (-COOH) to the first carbon, representing the acid part of pentanoic acid. 3. **Complete the Structure**: - Ensure that all other bonds not part of the backbone or COOH group are saturated with hydrogen atoms (not explicitly needed in the drawing). #### Final Structure Representation: The final structure should look like this (without explicitly drawn hydrogen atoms): ``` H H H H | | | | H - C - C - C - C - C = O | | H OH ``` This structure represents pentanoic acid (CH₃CH₂CH₂CH₂COOH). ### Additional Tips: - **Use the appropriate bond tools** to ensure clarity in structural representation. - **Check all valencies** to make sure the structure is accurate. - **Utilize zoom and cleaning tools** to tidy up your drawing. This exercise helps understand organic chemistry principles and the structural composition of carboxylic acids, a crucial functional group in organic compounds.
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