Draw a structural formula for 2,3-dimethylbutanoic acid. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. 8) APVAL CH4 ▼ Sn [F ? ChemDoodle
Draw a structural formula for 2,3-dimethylbutanoic acid. • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. 8) APVAL CH4 ▼ Sn [F ? ChemDoodle
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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
Transcribed Image Text:### Drawing the Structural Formula for 2,3-Dimethylbutanoic Acid
When creating the structural formula for **2,3-dimethylbutanoic acid**, follow these guidelines:
- **Stereochemistry**: It’s unnecessary to consider stereochemistry.
- **Hydrogen Atoms**: You do not need to explicitly draw hydrogen atoms.
#### Using the ChemDoodle Interface
**ChemDoodle Tool Description:**
1. **Toolbar Options:**
- Various drawing tools are available including:
- Bond tools (single, double, triple bonds, etc.)
- Geometry tools (lines, shapes)
- Element selectors
- Undo and redo options
- Templates for common molecules and structures
2. **Drawing Pad:**
- The central blank space is where you can create the structural formula.
- An example molecule (likely methane, CH₄) appears in the pad.
**Procedure to Draw the Structural Formula:**
1. **Structure Identification:**
- Begin with the backbone of the molecule: "butanoic acid" implies a four-carbon chain with a carboxylic acid group at the end.
- The "2,3-dimethyl" part indicates that there are two methyl groups attached to the second and third carbons of the butanoic acid chain.
2. **Drawing the Skeleton:**
- Draw a four-carbon chain.
- At the end of the fourth carbon, draw the carboxylic acid functional group (COOH).
3. **Adding Methyl Groups:**
- Attach a methyl group (CH₃) to the second carbon of the main chain.
- Attach another methyl group (CH₃) to the third carbon of the main chain.
**Resulting Structure:**
```
CH3
|
CH3—CH—CH—COOH
|
CH3
```
### Summary
Using the ChemDoodle interface, draw a four-carbon chain for butanoic acid, add a carboxylic acid group at the end, and attach two methyl groups to the 2nd and 3rd carbons of the main chain. Remember, this is a representation without stereochemistry and without explicit hydrogen atoms.
By following these steps, you can successfully create the structural formula for **2,3-dimethylbutanoic acid**.
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