[ICHO] 36th International Chemistry Olympiad-Exam questions
36th International Chemistry Olympiad: Preparatory Problems and Worked Solutions
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Preparatory Problems and Worked Solutions
Contents of Preparatory Problems and Worked Solutions
Problem Solution
1. Combustion Energy 7 61
2. Haber-Bosch Process 7 63
3. Thermodynamics in Biochemistry 9 64
4. Heat Conductivity 9 65
5. “Green” Chemistry – The Use of Supercritical CO2 11 65
6. Chemical Kinetics of the Peroxodisulfate Ion 12 66
7. Catalytic Hydrogenation of Ethylene 12 67
8. Kinetics of an Enzymatic Reaction 14 68
9. CaCN2 – An Old but still Important Fertilizer 16 69
10. Closed-Packed Structures 16 70
11. Titanium carbide – A High-Tech Solid 18 72
12. Metal Nanoclusters 19 73
13. Absorption of Light by Molecules 19 75
14. Observing Single Molecules 20 75
15. Infrared Spectroscopy of Tetrahedral Molecules 22 76
16. Spectroscopy in Bioorganic Chemistry 23 77
17. DNA, RNA, Proteins 25 79
18. Fatty Acid Degradation 26 80
19. Lipids 27 82
20. Kekulé, Benzene and the Problem of Aromaticity 28 83
21. Benzene and Cyclohexane 31 85
22. Non-Benzoid Aromatic Systems 31 86
23. Pain Reliefers 32 88
24. Carbonyl Chemistry 34 90
25. Cyclohexanes 36 91
26. Chiral Compounds 36 92
27. Monosaccharides 36 92
28. Epibatidine 37 93
29. Crixivan® 37 94
30. Stereoselective Reduction 38 94
31. Surfactant Micelles 39 95
32. Self-assembly of Amphiphilic Block Copolymers 40 97
33. Microemulsions 42 99
34. Silica Nanostructures 43 100
35. Preparation and volumetric determination of strontium peroxide octahydrate 46 102
36. Preparation and iodometric determination of potassium iodate 47 102
37. Qualitative analysis of anions in an unknown mixture 49 102
38. Recycling of Polymethylmethacrylate 55 103
39. Synthesis of para-chlorobenzyl alcohol – an example of the Cannizzaro Reaction 57 103
40. Ammonolysis of an activated carbonic acid ester: synthesis of cyano acetamide 59 104