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
The ester shown in the diagram consists of a functional group derived from an organic acid and an alcohol. The structure can be analyzed as follows:
1. **Identify the Alkyl (Alcohol-derived) Portion:**
This is the part of the ester structure that comes from the alcohol. Here, a methyl (CH₃) group is attached to the oxygen atom. This part is named first in the ester naming process.
2. **Identify the Acyl (Acid-derived) Portion:**
This is the part that comes from the acid, which includes the carbonyl group (C=O). The structure includes a propanoate group as it consists of a two-carbon chain connected to a carbonyl group.
**Detailed Explanation of the Diagram:**
- The structure contains a carbonyl group (C=O) bonded to a carbon atom.
- Attached to this carbon atom is an alkyl group (ethyl, CH₃-CH₂-).
- The oxygen atom connected to the carbonyl carbon is also bonded to a methyl group (CH₃).
Therefore, the ester name can be constructed by naming the alkyl group first (from the alcohol) followed by naming the acyl group (from the acid) derived from its systematic name.
**Answer:**
The IUPAC name of the ester shown in the structure is **methyl propanoate**.
Feel free to use the provided link for hints if necessary:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F05e4ecee-2cea-4f4d-ab25-0174354ce1c3%2Fe9695420-618b-4eee-833f-c1d324e3cb21%2F8koscfq.jpeg&w=3840&q=75)
Transcribed Image Text:### Part B: Ester Nomenclature
**Question:**
Enter the IUPAC name of the ester depicted below.
**Chemical Structure:**
The ester shown in the diagram consists of a functional group derived from an organic acid and an alcohol. The structure can be analyzed as follows:
1. **Identify the Alkyl (Alcohol-derived) Portion:**
This is the part of the ester structure that comes from the alcohol. Here, a methyl (CH₃) group is attached to the oxygen atom. This part is named first in the ester naming process.
2. **Identify the Acyl (Acid-derived) Portion:**
This is the part that comes from the acid, which includes the carbonyl group (C=O). The structure includes a propanoate group as it consists of a two-carbon chain connected to a carbonyl group.
**Detailed Explanation of the Diagram:**
- The structure contains a carbonyl group (C=O) bonded to a carbon atom.
- Attached to this carbon atom is an alkyl group (ethyl, CH₃-CH₂-).
- The oxygen atom connected to the carbonyl carbon is also bonded to a methyl group (CH₃).
Therefore, the ester name can be constructed by naming the alkyl group first (from the alcohol) followed by naming the acyl group (from the acid) derived from its systematic name.
**Answer:**
The IUPAC name of the ester shown in the structure is **methyl propanoate**.
Feel free to use the provided link for hints if necessary:
![### Part A
**Enter the IUPAC name of the ester depicted below.**
[Image: Chemical Structure]
The image shows a chemical structure of an ester. Below is the structural description of the ester:
- The ester has a carbonyl group (C=O) attached to an oxygen atom.
- From the oxygen atom, there is an ethyl group (two carbon atoms chain).
- The carbonyl carbon is attached to a three carbon atoms chain (propyl group).
For support, you can view hints by clicking on the "View Available Hint(s)" link below the image.
---
**Note for Educators:**
When teaching students to name esters in IUPAC nomenclature, remind them that esters are named based on their alkyl group (derived from the alcohol part) and the acyl group (derived from the acid part). The name of the ester is obtained by naming the alkyl group first, followed by the name of the acid part where the -oic acid suffix is replaced by -oate.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F05e4ecee-2cea-4f4d-ab25-0174354ce1c3%2Fe9695420-618b-4eee-833f-c1d324e3cb21%2Fdyt24kh.jpeg&w=3840&q=75)
Transcribed Image Text:### Part A
**Enter the IUPAC name of the ester depicted below.**
[Image: Chemical Structure]
The image shows a chemical structure of an ester. Below is the structural description of the ester:
- The ester has a carbonyl group (C=O) attached to an oxygen atom.
- From the oxygen atom, there is an ethyl group (two carbon atoms chain).
- The carbonyl carbon is attached to a three carbon atoms chain (propyl group).
For support, you can view hints by clicking on the "View Available Hint(s)" link below the image.
---
**Note for Educators:**
When teaching students to name esters in IUPAC nomenclature, remind them that esters are named based on their alkyl group (derived from the alcohol part) and the acyl group (derived from the acid part). The name of the ester is obtained by naming the alkyl group first, followed by the name of the acid part where the -oic acid suffix is replaced by -oate.
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