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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Question
Consider compounds A-F. There can be more than 1 choice
![**Consider Compounds A-F**
Diagrams of six molecular structures labeled A to F are presented for analysis:
- **A**: A bromine (Br) atom is attached to a branched alkyl chain.
- **B**: A bromine (Br) atom is attached to a straight alkyl chain.
- **C**: A chlorine (Cl) atom is attached to a branched alkyl chain.
- **D**: A benzene ring with no substituents.
- **E**: A benzene ring with a methyl group attached (toluene).
- **F**: A benzene ring with an ethyl group attached (ethylbenzene).
**Questions for Analysis:**
1. **Which of these compounds have one type of hydrogen (will show 1 signal in \(^{1}\text{H NMR}\))?**
[Select]
2. **Which of these compounds have two types of hydrogen (will show 2 signals in \(^{1}\text{H NMR}\))?**
[Select]
3. **Which of these compounds have three types of hydrogen (will show 3 signals in \(^{1}\text{H NMR}\))?**
[Select]
4. **Which of these compounds have four types of hydrogen (will show 4 signals in \(^{1}\text{H NMR}\))?**
[Select]
5. **Which of these compounds have more than 4 types of hydrogen (will show more than 4 signals in \(^{1}\text{H NMR}\))?**
[Select]
**Explanation:**
To determine the number of types of hydrogen atoms, consider the molecular symmetry and environment of each compound. \(^{1}\text{H NMR}\) spectroscopy identifies hydrogen atoms based on their unique chemical environments. Different environments will give rise to distinct peaks in the spectrum.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fefcb5e7c-af3c-42bb-af4e-0a54eb674681%2F71f97da4-bf72-4d5a-92e3-5a8a83266c38%2Fj3a4nz_processed.png&w=3840&q=75)
Transcribed Image Text:**Consider Compounds A-F**
Diagrams of six molecular structures labeled A to F are presented for analysis:
- **A**: A bromine (Br) atom is attached to a branched alkyl chain.
- **B**: A bromine (Br) atom is attached to a straight alkyl chain.
- **C**: A chlorine (Cl) atom is attached to a branched alkyl chain.
- **D**: A benzene ring with no substituents.
- **E**: A benzene ring with a methyl group attached (toluene).
- **F**: A benzene ring with an ethyl group attached (ethylbenzene).
**Questions for Analysis:**
1. **Which of these compounds have one type of hydrogen (will show 1 signal in \(^{1}\text{H NMR}\))?**
[Select]
2. **Which of these compounds have two types of hydrogen (will show 2 signals in \(^{1}\text{H NMR}\))?**
[Select]
3. **Which of these compounds have three types of hydrogen (will show 3 signals in \(^{1}\text{H NMR}\))?**
[Select]
4. **Which of these compounds have four types of hydrogen (will show 4 signals in \(^{1}\text{H NMR}\))?**
[Select]
5. **Which of these compounds have more than 4 types of hydrogen (will show more than 4 signals in \(^{1}\text{H NMR}\))?**
[Select]
**Explanation:**
To determine the number of types of hydrogen atoms, consider the molecular symmetry and environment of each compound. \(^{1}\text{H NMR}\) spectroscopy identifies hydrogen atoms based on their unique chemical environments. Different environments will give rise to distinct peaks in the spectrum.
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