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Prelim CHM556

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  CHM556 ORGANIC CHEMISTRY II LABORATORY   Contact hours: 3 hours/week Laboratory textbook: Pavia, Lampman, Kriz and Engel, Introduction to Organic Laboratory Techniques 3 rd  Edition (2011) Laboratory: M606 Students must obtain a copy of the textbook. The instruction sheets only contain brief guidelines to the experiments but the detailed procedural information must be referred to the textbook. The experiments selected from the laboratory textbook will reinforce the theory and concepts studied in Organic Chemistry II. The experiments involve laboratory techniques such as reflux, distillation, extraction, recrystallization and melting point determination, synthesis of organic compounds and separations of mixtures. Analysis of compounds using IR and NMR spectroscopy will also be included. The Techniques Students are required read and understand the various techniques that will be covered in the laboratory sessions from the textbook. Techniques Page 1. Laboratory Safety 6 2. Laboratory Glassware: Care and Cleaning 31 3. Measurement of Volume and Weight 39 4. Heating and Cooling Methods 58 5. Reaction Methods (Eg: Distillation, Reflux) 68 6. Filtration 90 7. Physical Constants of Solids: The Melting Point 103 8. Crystallization: Purification of Solids 122 9. Extractions, Separations and Drying Agents 141 10. Simple Distillation 179 11. Thin Layer Chromatography 261 12. Infrared Spectroscopy 311 13. NMR Spectroscopy (Proton NMR) 346 14. NMR Spectroscopy (Carbon-13 NMR) 383 Laboratory Note Book Please read Technique 2 on page 23 on the  Laboratory Note Book, Calculations and  Records  carefully. The laboratory note book is mandatory and a student will not be allowed to conduct the experiment without a laboratory note book. Only hard bound notebook is acceptable. This note book is required for the pre-laboratory preparations as well as recording results, data and observation of each experiment. The pre-  laboratory preparations must include not only procedural notes but also reactions and calculations. Assessment and Grading The laboratory sessions contribute 20% of the course grade. The success of your experiments will depend on how well you conduct the experiments to achieve the objectives. This is reflected in the marks obtained. The marks for each experiment will come from the following: A. Pre-laboratory preparations (assessed from the lab note books) 2 marks B. Laboratory techniques (performance in the lab) 1 marks C. Laboratory reports (all reports are individual work) 17 marks Total 20 marks A well written report is vital in achieving a good grade. Besides conducting the experiments carefully, the students are expected to write a good report which will reflect a good understanding of chemistry behind the experiments. 1.   All laboratory reports must be typed and submitted one week after the experiments. 2.   The cover page should contain the following information: Course name, Course code, number and title of experiment, name of student, name of  partners (for group work), name of lecturer, and date of experiment and date of submission of report. 3.   The following marking scheme table must be included with the laboratory report. 4.   Should the student fail to submit the week’s report, the student is given maximum of 3 marks (for prelab and technique). Marks will also be deducted for late submission of report. 5.    No report will be accepted (no marks given) from students who did not  perform the week’s experiment. 6.   Students who missed any lab session (with medical certificate) will be graded based on the remaining number of experiments.  Laboratory Report Marking Scheme Full Mark(s) Marks (to be filled by lecturer) Objective of the Experiment 1.0 Introduction 2.0 Experimental Procedure 1.0 Results and Observations 3.0 Calculations 3.0 Discussion 2.0 Conclusion 1.0 Answers to Questions 3.0 References 1.0 Pre-laboratory preparations 2.0 Laboratory techniques 1.0 Total Marks 20
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