In the following acid-base reactions, the mechanism of reaction is shown. (i) Label the reactants as acid and base. (ii) Draw structures of the products in the appropriate boxes for conjugate acid and conjugate base. a. ANH, b. Co Conjugate acid Conjugate acid Conjugate base Conjugate base

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The image presents a problem about acid-base reactions and their mechanisms. Here's a transcription suitable for an educational website:

---

1. In the following acid-base reactions, the mechanism of reaction is shown.

   (i) Label the reactants as acid and base.

   (ii) Draw structures of the products in the appropriate boxes for conjugate acid and conjugate base.

   - **Reaction a:**
     - Structure: An amine group (NH₂) with lone pairs is shown reacting with a carboxylic acid group, depicted with a benzene ring attached to a carbonyl (C=O) and hydroxyl (OH) group. An arrow indicates the reaction mechanism, pointing from the lone pair on the nitrogen to the hydrogen of the hydroxyl group.
     - Product placeholders: Two boxes, one labeled "Conjugate acid" and the other labeled "Conjugate base," are provided for drawing the resulting products of the reaction.

   - **Reaction b:**
     - Structure: An oxide ion (O⁻) with a lone pair is shown reacting with a phenol group, which includes a benzene ring with an OH group attached. An arrow indicates the reaction mechanism, pointing from the lone pair on the oxygen to the hydrogen of the phenol group.
     - Product placeholders: Two boxes, one labeled "Conjugate acid" and the other labeled "Conjugate base," are provided for drawing the resulting products of the reaction.

---

Explaining the diagrams: 

- The diagrams illustrate two acid-base reactions where electron lone pairs on the base react with a hydrogen atom of an acid to form conjugate acid-base pairs. Each diagram has arrows indicating the proposed mechanistic steps.
- Students are instructed to identify which reactants serve as acid and base and to complete the diagrams by drawing the resulting conjugate acid and base in the outlined areas.

This exercise helps students understand the proton transfer process in acid-base reactions and practice identifying and drawing chemical structures.
Transcribed Image Text:The image presents a problem about acid-base reactions and their mechanisms. Here's a transcription suitable for an educational website: --- 1. In the following acid-base reactions, the mechanism of reaction is shown. (i) Label the reactants as acid and base. (ii) Draw structures of the products in the appropriate boxes for conjugate acid and conjugate base. - **Reaction a:** - Structure: An amine group (NH₂) with lone pairs is shown reacting with a carboxylic acid group, depicted with a benzene ring attached to a carbonyl (C=O) and hydroxyl (OH) group. An arrow indicates the reaction mechanism, pointing from the lone pair on the nitrogen to the hydrogen of the hydroxyl group. - Product placeholders: Two boxes, one labeled "Conjugate acid" and the other labeled "Conjugate base," are provided for drawing the resulting products of the reaction. - **Reaction b:** - Structure: An oxide ion (O⁻) with a lone pair is shown reacting with a phenol group, which includes a benzene ring with an OH group attached. An arrow indicates the reaction mechanism, pointing from the lone pair on the oxygen to the hydrogen of the phenol group. - Product placeholders: Two boxes, one labeled "Conjugate acid" and the other labeled "Conjugate base," are provided for drawing the resulting products of the reaction. --- Explaining the diagrams: - The diagrams illustrate two acid-base reactions where electron lone pairs on the base react with a hydrogen atom of an acid to form conjugate acid-base pairs. Each diagram has arrows indicating the proposed mechanistic steps. - Students are instructed to identify which reactants serve as acid and base and to complete the diagrams by drawing the resulting conjugate acid and base in the outlined areas. This exercise helps students understand the proton transfer process in acid-base reactions and practice identifying and drawing chemical structures.
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