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

16. Carboxylic Acids and Their Derivatives

Naming Amides

GOB Chemistry

16. Carboxylic Acids and Their Derivatives

Naming Amides

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Problem 13a

Textbook Question

Identify the following molecules as an ester, a carboxylic acid, or an amide, and write both the condensed and line-structural formula for each.
a. <IMAGE>

Verified step by step guidance

Step 1: Understand the functional groups associated with esters, carboxylic acids, and amides. An ester contains a carbonyl group (C=O) directly bonded to an oxygen atom that is also bonded to another carbon atom. A carboxylic acid contains a carbonyl group (C=O) directly bonded to a hydroxyl group (-OH). An amide contains a carbonyl group (C=O) directly bonded to a nitrogen atom (N).

Step 2: Examine the molecular structure provided in the image. Look for the key functional groups (C=O, -OH, -O-, or -NH2) to identify whether the molecule is an ester, carboxylic acid, or amide.

Step 3: Once the functional group is identified, classify the molecule accordingly. For example, if the molecule has a C=O group bonded to an -OH group, it is a carboxylic acid. If it has a C=O group bonded to an -O- group, it is an ester. If it has a C=O group bonded to an -NH2 or -NHR group, it is an amide.

Step 4: Write the condensed structural formula for the molecule. This involves representing the molecule in a compact form, showing the arrangement of atoms and functional groups without explicitly drawing bonds.

Step 5: Draw the line-structural formula for the molecule. This involves using lines to represent bonds between atoms, with the functional groups clearly depicted. Ensure the structure is consistent with the functional group identified in Step 3.

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Key Concepts

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

Ester

Esters are organic compounds formed from the reaction of an alcohol and a carboxylic acid, characterized by the functional group -COO-. They often have pleasant fruity odors and are commonly found in natural products and synthetic flavors. The general structure can be represented as RCOOR', where R and R' are hydrocarbon chains.

Carboxylic Acid

Carboxylic acids are organic compounds that contain a carboxyl group (-COOH), which consists of a carbonyl (C=O) and a hydroxyl (OH) group. They are known for their acidic properties and are commonly found in various biological and industrial processes. The general formula for a carboxylic acid is RCOOH, where R is a hydrocarbon chain.

Amide

Amides are organic compounds derived from carboxylic acids where the hydroxyl group is replaced by an amine or ammonia. They contain the functional group -CONH2, -CONHR, or -CONR2, making them important in biochemistry, particularly in the formation of proteins. Amides can be classified as primary, secondary, or tertiary based on the number of carbon groups attached to the nitrogen.

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