Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

17. Amines

Naming Amines

GOB Chemistry

17. Amines

Naming Amines

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1:49 minutes

Problem 44c

Textbook Question

Draw the condensed structural formula for a and b and the line-angle formula for c and d:
c. 3-methylbutyramide

Verified step by step guidance

Step 1: Understand the structure of 3-methylbutyramide. The name indicates that the compound is an amide derived from 3-methylbutanoic acid. An amide group consists of a carbonyl group (C=O) attached to a nitrogen atom (NH2 or substituted).

Step 2: Break down the name '3-methylbutyramide.' The 'butyr-' prefix indicates a four-carbon chain, and '3-methyl' specifies a methyl group attached to the third carbon in the chain. The 'amide' suffix indicates the presence of a -CONH2 group.

Step 3: Draw the condensed structural formula for 3-methylbutyramide. Start with the four-carbon chain (butane), add the methyl group to the third carbon, and replace the terminal -COOH group of butanoic acid with a -CONH2 group to form the amide.

Step 4: Convert the condensed structural formula into a line-angle formula. In a line-angle formula, each vertex represents a carbon atom, and lines represent bonds. Show the methyl group branching off the third carbon and the amide group at the end of the chain.

Step 5: Double-check the structure to ensure it matches the IUPAC name. Verify that the methyl group is correctly positioned on the third carbon and that the amide group is properly represented.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Condensed Structural Formula

A condensed structural formula is a way of representing a chemical compound that shows the arrangement of atoms and the connectivity between them without depicting all the bonds explicitly. It typically groups atoms together to indicate how they are bonded, making it easier to visualize the structure of the molecule in a compact form.

Line-Angle Formula

The line-angle formula, also known as the skeletal formula, is a shorthand representation of organic molecules where vertices represent carbon atoms and lines represent bonds. This method simplifies the drawing of complex structures by omitting hydrogen atoms and focusing on the connectivity of the carbon skeleton, making it particularly useful for larger molecules.

3-Methylbutyramide

3-Methylbutyramide is an organic compound that belongs to the amide functional group, characterized by the presence of a carbonyl group (C=O) adjacent to a nitrogen atom (N). The '3-methyl' indicates a methyl group (–CH3) is attached to the third carbon of a butyric acid chain, which is essential for accurately drawing its structural formulas.

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