Table of contents

Skip topic navigation

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

32. Lipids

Triacylglycerol Reactions: Hydrogenation

Organic Chemistry

32. Lipids

Triacylglycerol Reactions: Hydrogenation

Previous problemNext problem

Struggling with Organic Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Determine a possible triacylglycerol molecule formed when linoleic acid undergoes partial hydrogenation and consumes 1 mole of hydrogen gas.

Palmeitoleic acid

Stearic acid

Linolenic acid

Oleic acid

Previous problemNext problem

Verified step by step guidance

Identify the structure of linoleic acid, which is an 18-carbon fatty acid with two cis double bonds at the 9th and 12th carbon positions.

Understand that partial hydrogenation involves the addition of hydrogen (H₂) to some of the double bonds in unsaturated fatty acids, converting them into single bonds.

Recognize that consuming 1 mole of hydrogen gas (H₂) will reduce one of the double bonds in linoleic acid, converting it into a single bond.

Determine which double bond is reduced. In partial hydrogenation, typically the least stable double bond is reduced first. In linoleic acid, this would be the double bond at the 12th carbon position.

After the reduction of one double bond, linoleic acid is converted into oleic acid, which has a single cis double bond at the 9th carbon position, making it a monounsaturated fatty acid.