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

20. Carbohydrates

Enantiomers vs Diastereomers

GOB Chemistry

20. Carbohydrates

Enantiomers vs Diastereomers

Previous problemNext problem

3:35 minutes

Problem 15

Textbook Question

Classify structures A, B, and C in the figure as being either an enantiomer or a diastereomer of D-galactose.

Verified step by step guidance

Examine the structure of d-galactose and identify its stereocenters. A stereocenter is a carbon atom bonded to four different groups.

Compare the stereocenters of structure A with those of d-galactose. Determine if all stereocenters are inverted (enantiomer) or if only some are inverted (diastereomer).

Repeat the comparison for structure B, analyzing its stereocenters relative to d-galactose to classify it as an enantiomer or diastereomer.

Perform the same stereocenter comparison for structure C, checking whether all or some stereocenters are inverted compared to d-galactose.

Summarize the classifications for structures A, B, and C based on the stereocenter analysis, ensuring clarity in distinguishing enantiomers (complete inversion) from diastereomers (partial inversion).

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.

Enantiomers

Enantiomers are a type of stereoisomer that are non-superimposable mirror images of each other. They have identical physical properties except for their interaction with plane-polarized light and reactions in chiral environments. Understanding enantiomers is crucial for classifying molecules like d-galactose and its derivatives.

Diastereomers

Diastereomers are stereoisomers that are not mirror images of each other. They have different physical and chemical properties, which can be used to distinguish them from one another. In the context of d-galactose, identifying diastereomers involves recognizing differences in configuration at one or more but not all stereocenters.

Stereochemistry

Stereochemistry is the study of the spatial arrangement of atoms in molecules and how this affects their chemical behavior. It is essential for understanding the relationships between different forms of sugars like d-galactose, as the three-dimensional orientation of atoms determines whether a structure is an enantiomer or a diastereomer.

Watch next

Master Enantiomers vs Diastereomers Concept 1 with a bite sized video explanation from Jules

Start learning

Related Videos

Related Practice

Textbook Question

Indicate whether each pair of Fischer projections represents enantiomers or identical structures.

524

views

Textbook Question

Indicate whether each pair of Fischer projections represents enantiomers or identical structures.

390

views

Textbook Question

Draw the Fischer projection of the C3 epimer of D-glucose. Compare your structure with those in Table 6.1 and give the name of this compound.

563

views

Textbook Question

Draw the Fischer projection for the enantiomer (mirror image) of each of the following:

(a)

522

views

Textbook Question

Use the structure of D-galactose in Problem 6.15 to answer the following:

(a) Draw the Fischer projection of the carbon 3 epimer.

454

views

Multiple Choice

Identify each pair of carbohydrates as enantiomers or diastereomers.

390

views

Multiple Choice

Draw the enantiomer of given structure of Xylose, and identify as D or L.

Aldoheptoses have five chiral carbon atoms. What is the maximum possible number of aldoheptose stereoisomers? Draw all of the aldoheptose stereoisomers.

513

views

Show more practices

Download the Mobile app

Privacy

Do not sell my personal information

Accessibility

Patent notice

Sitemap