Table of contents

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

3. Acids and Bases

Organic Chemistry Reactions

Organic Chemistry

3. Acids and Bases

Organic Chemistry Reactions

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Multiple Choice

In an organic chemistry reaction, what is the typical percentage of energy lost as heat at each trophic level?

20%

10%

30%

40%

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Verified step by step guidance

Understand the concept of energy transfer in biological systems: In ecological terms, energy transfer between trophic levels is often discussed in the context of food chains and ecosystems. This is not directly related to organic chemistry, but understanding the concept can be useful.

Recognize the typical percentage of energy lost as heat: In ecological studies, it is commonly accepted that approximately 90% of energy is lost as heat when moving from one trophic level to the next. This means only about 10% of the energy is transferred to the next level.

Identify the correct percentage: Given the options, the correct percentage of energy transferred to the next trophic level is 10%, meaning 90% is lost as heat.

Relate this concept to organic chemistry: While this is more of an ecological concept, understanding energy transfer can be useful in organic chemistry when considering energy changes in reactions, such as exothermic and endothermic reactions.

Apply this understanding to broader scientific contexts: Recognizing energy loss in trophic levels can help in understanding energy efficiency and conservation in chemical processes, which is a valuable concept in organic chemistry.