Attempt to rank the following compounds in order of decreasing carbonyl stretching frequency. In other words, rank the compound you think will have the highest carbonyl frequency as "1". CH3 HO, H. * Plkase explin 1740 1720 (M benzaldehyde acetophenone benzoic acid Но NH2 benzamide N-methylbenzamide salicylic acid oh oo d ob benzoic anhydride ethyl benzoate CF3 2,2,2-trifluoroacetophenone benzophenone

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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The image contains a chemistry exercise focusing on the carbonyl stretching frequency of different compounds. Students are asked to rank these compounds in order of decreasing carbonyl stretching frequency. 

The compounds are:

1. **2,2,2-Trifluoroacetophenone**
   - Contains a benzene ring connected to a carbonyl group, with trifluoromethyl substitution.

2. **Ethyl Benzoate**
   - Comprises a benzene ring connected to an ester group with ethyl substitution.

3. **Benzamide**
   - Features a benzene ring linked to a carbonyl group and an amino group.

4. **Benzaldehyde**
   - Consists of a benzene ring attached to a formyl group.

5. **Acetophenone**
   - Includes a benzene ring bonded to a methyl ketone.

6. **Benzoic Anhydride**
   - Contains two benzene rings connected by an anhydride linkage.

7. **Benzophenone**
   - Features two benzene rings joined by a carbonyl group.

8. **N-Methylbenzamide**
   - Contains a benzene ring, carbonyl group, and a methylated amine.

9. **Salicylic Acid**
   - Comprises a benzene ring with hydroxyl and carboxylic acid groups.

10. **Benzoic Acid**
    - Features a benzene ring attached to a carboxylic acid group.

The assignment notes ask the student to explain their reasoning for the ranking in detail. There is also a handwritten note stating, "*Please explain why*."

This exercise challenges students to apply their understanding of how structural differences can influence the carbonyl stretching frequencies in IR spectroscopy.
Transcribed Image Text:The image contains a chemistry exercise focusing on the carbonyl stretching frequency of different compounds. Students are asked to rank these compounds in order of decreasing carbonyl stretching frequency. The compounds are: 1. **2,2,2-Trifluoroacetophenone** - Contains a benzene ring connected to a carbonyl group, with trifluoromethyl substitution. 2. **Ethyl Benzoate** - Comprises a benzene ring connected to an ester group with ethyl substitution. 3. **Benzamide** - Features a benzene ring linked to a carbonyl group and an amino group. 4. **Benzaldehyde** - Consists of a benzene ring attached to a formyl group. 5. **Acetophenone** - Includes a benzene ring bonded to a methyl ketone. 6. **Benzoic Anhydride** - Contains two benzene rings connected by an anhydride linkage. 7. **Benzophenone** - Features two benzene rings joined by a carbonyl group. 8. **N-Methylbenzamide** - Contains a benzene ring, carbonyl group, and a methylated amine. 9. **Salicylic Acid** - Comprises a benzene ring with hydroxyl and carboxylic acid groups. 10. **Benzoic Acid** - Features a benzene ring attached to a carboxylic acid group. The assignment notes ask the student to explain their reasoning for the ranking in detail. There is also a handwritten note stating, "*Please explain why*." This exercise challenges students to apply their understanding of how structural differences can influence the carbonyl stretching frequencies in IR spectroscopy.
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