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8. Indicate which compound is more acidic. Explain your answer. он он NO2 ČH3

8. Indicate which compound is more acidic. Explain your answer. он он NO2 ČH3

Chemistry
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 8:** Indicate which compound is more acidic. Explain your answer. **Diagram:** The image shows two aromatic compounds, each with a hydroxyl group (OH) attached to a benzene ring. The first compound has a nitro group (NO₂) attached to the benzene ring, while the second compound has a methyl group (CH₃) attached. **Explanation:** The acidity of a compound is influenced by the substituents attached to the aromatic ring. In the first compound, the nitro group (NO₂) is an electron-withdrawing group, which stabilizes the negative charge on the phenoxide ion that forms after deprotonation, increasing the acidity of the compound. In the second compound, the methyl group (CH₃) is an electron-donating group, which does not stabilize the phenoxide ion as effectively, resulting in lower acidity compared to the nitro-substituted compound. Therefore, the compound with the NO₂ group is more acidic.
Transcribed Image Text:**Question 8:** Indicate which compound is more acidic. Explain your answer. **Diagram:** The image shows two aromatic compounds, each with a hydroxyl group (OH) attached to a benzene ring. The first compound has a nitro group (NO₂) attached to the benzene ring, while the second compound has a methyl group (CH₃) attached. **Explanation:** The acidity of a compound is influenced by the substituents attached to the aromatic ring. In the first compound, the nitro group (NO₂) is an electron-withdrawing group, which stabilizes the negative charge on the phenoxide ion that forms after deprotonation, increasing the acidity of the compound. In the second compound, the methyl group (CH₃) is an electron-donating group, which does not stabilize the phenoxide ion as effectively, resulting in lower acidity compared to the nitro-substituted compound. Therefore, the compound with the NO₂ group is more acidic.
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