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:**
Which of the following compounds has the lowest normal boiling point?
**Options:**
- ○ CH₃CH₂CH₂NH₂
- ● CH₃CH₂CH₂F
- ○ CH₃CH₂CH₂OH
- ○ CH₃CH₂COOH
- ○ CH₃CH(OH)CH₃
**Answer:**
The option CH₃CH₂CH₂F is selected, indicating it is believed to have the lowest normal boiling point among the given compounds.
**Explanation:**
In determining the boiling points of these compounds, it is important to consider the types of intermolecular forces present. Generally, compounds with stronger intermolecular forces have higher boiling points. In this context:
- **CH₃CH₂CH₂NH₂** and **CH₃CH(CH₃)OH** will have hydrogen bonding due to their NH and OH groups, respectively.
- **CH₃CH₂COOH** also has hydrogen bonding as well as additional interactions due to its carboxylic acid group.
- **CH₃CH₂CH₂OH** has hydrogen bonding from its OH group.
- **CH₃CH₂CH₂F** only has dipole-dipole interactions but lacks hydrogen bonding, making it likely to have the lowest boiling point.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F04c71680-7fa8-4822-a761-dbcd79126143%2F22456deb-c55e-454b-8b7f-4794a1d654d1%2Fojksghp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:**
Which of the following compounds has the lowest normal boiling point?
**Options:**
- ○ CH₃CH₂CH₂NH₂
- ● CH₃CH₂CH₂F
- ○ CH₃CH₂CH₂OH
- ○ CH₃CH₂COOH
- ○ CH₃CH(OH)CH₃
**Answer:**
The option CH₃CH₂CH₂F is selected, indicating it is believed to have the lowest normal boiling point among the given compounds.
**Explanation:**
In determining the boiling points of these compounds, it is important to consider the types of intermolecular forces present. Generally, compounds with stronger intermolecular forces have higher boiling points. In this context:
- **CH₃CH₂CH₂NH₂** and **CH₃CH(CH₃)OH** will have hydrogen bonding due to their NH and OH groups, respectively.
- **CH₃CH₂COOH** also has hydrogen bonding as well as additional interactions due to its carboxylic acid group.
- **CH₃CH₂CH₂OH** has hydrogen bonding from its OH group.
- **CH₃CH₂CH₂F** only has dipole-dipole interactions but lacks hydrogen bonding, making it likely to have the lowest boiling point.
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