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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Transcribed Image Text:### Reaction Overview
**Task:** For the reaction below, identify the reactant electrophile and the nucleophile.
### Reactants:
1. **Cyclopentanone (C5H8O):**
- Structure: A five-membered carbon ring with a carbonyl group (C=O).
- Oxygen is depicted with two lone pairs.
2. **Hydronium Ion (H3O⁺):**
- Structure: A water molecule with an additional hydrogen ion, forming H3O⁺.
- Oxygen is bonded to three hydrogens and carries a positive charge.
### Reaction:
- An arrow indicates the direction of the reaction from reactants to products.
### Products:
1. **Protonated Cyclopentanone:**
- Structure: The carbonyl oxygen is now bonded to an additional hydrogen, resulting in a positive charge on the oxygen.
- The structure remains as a five-membered carbon ring with the newly added hydrogen atom.
2. **Water (H2O):**
- Structure: Two hydrogens bonded to an oxygen atom, neutral charge.
### Explanation of Reaction:
- **Electrophile:** The hydronium ion (H3O⁺) acts as an electrophile, providing a proton (H⁺) to the nucleophile.
- **Nucleophile:** The oxygen atom in the carbonyl group of cyclopentanone acts as a nucleophile, using its lone pairs to attack the electrophile.
This reaction exemplifies an acid-catalyzed addition, where the nucleophilic carbonyl oxygen attacks the electrophilic proton from the hydronium ion, leading to the formation of protonated cyclopentanone and water.
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