A. Basicity of Amines, Demonsi Into 3 separate test tubes place approximately 2mL of 1M solutions of ammonium hydroxide, methylamine, and acetamide. Use pH paper to determine the pH of each solution. Record your observation. NH3 Ammonia H3C-NH, Methylamine H;C `NH2 acetamide Question: Write the names of the compound in order of increasing basicity (from least to most basic).
A. Basicity of Amines, Demonsi Into 3 separate test tubes place approximately 2mL of 1M solutions of ammonium hydroxide, methylamine, and acetamide. Use pH paper to determine the pH of each solution. Record your observation. NH3 Ammonia H3C-NH, Methylamine H;C `NH2 acetamide Question: Write the names of the compound in order of increasing basicity (from least to most basic).
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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![**Amines and Amides - Lab Report Sheet**
**Experimental Procedure**
**A. The Basicity of Ammonia, Amines, and Amides (Demonstration)**
Into 3 separate test tubes place approximately 2 mL of 1M solutions of ammonium hydroxide, methylamine, and acetamide.
Use pH paper to determine the pH of each solution.
Record your observation.
| | |
|------|------|
| **NH₃** | Ammonia |
| **H₃C—NH₂** | Methylamine |
| ![acetamide](https://via.placeholder.com/15) | ![acetamide](https://via.placeholder.com/15) |
| O=C | |
| H₃C—NH₂ | acetamide |
**Question:** Write the names of the compound in order of increasing basicity (from least to most basic).
---
**B. Reactions of Amines with Acids (Demonstration)**
**B-1** Dip a clean stirring rod into methylamine. Hold the stirring rod to the open mouth of a bottle of conc. HCl.
**Question:** What happens when methylamine is held to the mouth of a bottle of conc. HCl?
---
**Question:** Write the chemical equation for the formation of the finely divided solid which looks like smoke.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa893a4c3-f31b-4558-b693-921e89c986de%2F445c175b-8ca1-4a42-a916-d1003354b8f7%2F6z3ufvi_processed.png&w=3840&q=75)
Transcribed Image Text:**Amines and Amides - Lab Report Sheet**
**Experimental Procedure**
**A. The Basicity of Ammonia, Amines, and Amides (Demonstration)**
Into 3 separate test tubes place approximately 2 mL of 1M solutions of ammonium hydroxide, methylamine, and acetamide.
Use pH paper to determine the pH of each solution.
Record your observation.
| | |
|------|------|
| **NH₃** | Ammonia |
| **H₃C—NH₂** | Methylamine |
| ![acetamide](https://via.placeholder.com/15) | ![acetamide](https://via.placeholder.com/15) |
| O=C | |
| H₃C—NH₂ | acetamide |
**Question:** Write the names of the compound in order of increasing basicity (from least to most basic).
---
**B. Reactions of Amines with Acids (Demonstration)**
**B-1** Dip a clean stirring rod into methylamine. Hold the stirring rod to the open mouth of a bottle of conc. HCl.
**Question:** What happens when methylamine is held to the mouth of a bottle of conc. HCl?
---
**Question:** Write the chemical equation for the formation of the finely divided solid which looks like smoke.
![**B-2** To approximately 5mL of distilled water in a small beaker add 10 drops of triethylamine.
**Question:** Does triethylamine dissolve in water?
---
**B-3** Then add 15 drops of conc. HCl to the above beaker. Stir and check the pH of the solution using blue litmus paper.
**Question:** Does it dissolve when conc. HCl is added?
---
**Question:** Complete the following chemical reaction.
**Diagram:** A chemical structure with a nitrogen atom bonded to three ethyl groups (triethylamine) is shown reacting with HCl. An arrow indicates a product to be determined.
---
**C. Hydrolysis of Amides (Demonstration)**
- Place a few crystals of acetamide in a clean test tube.
- Add approximately 2mL of 6M NaOH.
- Warm gently in a boiling water bath.
- Carefully note the odor of the gas evolved.
- Hold a piece of moist red litmus paper *above the heated test tube.*
**Question:** Identify the gas evolved.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa893a4c3-f31b-4558-b693-921e89c986de%2F445c175b-8ca1-4a42-a916-d1003354b8f7%2Fh4314l8_processed.png&w=3840&q=75)
Transcribed Image Text:**B-2** To approximately 5mL of distilled water in a small beaker add 10 drops of triethylamine.
**Question:** Does triethylamine dissolve in water?
---
**B-3** Then add 15 drops of conc. HCl to the above beaker. Stir and check the pH of the solution using blue litmus paper.
**Question:** Does it dissolve when conc. HCl is added?
---
**Question:** Complete the following chemical reaction.
**Diagram:** A chemical structure with a nitrogen atom bonded to three ethyl groups (triethylamine) is shown reacting with HCl. An arrow indicates a product to be determined.
---
**C. Hydrolysis of Amides (Demonstration)**
- Place a few crystals of acetamide in a clean test tube.
- Add approximately 2mL of 6M NaOH.
- Warm gently in a boiling water bath.
- Carefully note the odor of the gas evolved.
- Hold a piece of moist red litmus paper *above the heated test tube.*
**Question:** Identify the gas evolved.
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