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 Esters

GOB Chemistry

16. Carboxylic Acids and Their Derivatives

Naming Esters

Previous problemNext problem

2:19 minutes

Problem 21d

Textbook Question

Draw the condensed structural formulas for a and b and line-angle formulas for c and d:
d. methyl propanoate

Verified step by step guidance

Step 1: Understand the problem. The task is to draw the condensed structural formula for methyl propanoate (a type of ester) and its line-angle formula. An ester is a compound derived from a carboxylic acid and an alcohol, where the hydrogen in the -COOH group is replaced by an alkyl group.

Step 2: Identify the components of methyl propanoate. The name 'methyl propanoate' indicates that the ester is formed from methanol (CH₃OH) and propanoic acid (CH₃CH₂COOH). The 'methyl' group comes from methanol, and the 'propanoate' group comes from propanoic acid.

Step 3: Write the condensed structural formula. Combine the methanol and propanoic acid components to form the ester. The structure will have the general formula RCOOR', where R is the propanoate group (CH₃CH₂-) and R' is the methyl group (CH₃). The condensed structural formula is CH₃CH₂COOCH₃.

Step 4: Draw the line-angle formula. In a line-angle formula, each vertex represents a carbon atom, and hydrogen atoms bonded to carbon are implied. Draw the backbone of the molecule with the ester functional group (-COO-) connecting the propanoate chain to the methyl group.

Step 5: Verify the structure. Ensure that the condensed structural formula and line-angle formula correctly represent the molecular structure of methyl propanoate, with all bonds and functional groups accurately depicted.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above

Video duration:

Play a video:

Was this helpful?

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

A line-angle formula, also known as a skeletal formula, is a simplified representation of a chemical structure where vertices represent carbon atoms and lines represent bonds. This method omits hydrogen atoms attached to carbons, making it easier to depict larger organic molecules while still conveying essential structural information.

Ester Functional Group

The ester functional group is characterized by the presence of a carbonyl (C=O) adjacent to an ether (C-O) group. In the case of methyl propanoate, it consists of a propanoate group (derived from propanoic acid) bonded to a methyl group. Esters are commonly found in nature and are known for their distinctive fragrances and flavors.

Watch next

Master IUPAC Rules for Naming Esters Concept 1 with a bite sized video explanation from Jules

Start learning