Research students doing

Recrystallisation. The process of purification by recrystallisation is undoubtedly the most frequent operation in practical organic chemistry, and it is one which, when cleanly and efficiently performed, should give great pleasure to the chemist, particularly if the original crude material is in a very impure and filthy condition. Yet no operation is carried out so badly, wastefully (and thoughtlessly) by students in general, not only by elementary students, but often by research students of several years experience. The student who intends later to do advanced work must master the process, for unless he can choose a suitable solvent and then successfully recrystallise often minute quantities of material, he will frequently find his work completely arrested. 

By its nature, the present treatment is not exhaustive, nor do we claim that any of the methods taken from the literature are the best possible. Nevertheless, we feel that the information contained in this book is likely to be helpful to a wide range of laboratory workers, including physical and inorganic chemists, research students, biochemists, and biologists. We hope that it will also be of use, although perhaps to only a limited extent, to experienced organic chemists. 

Bodner and Domin (2000) provide research evidence that even some university students do not find it easy to visualise these stractures. Students were asked to give the systematic names of the compounds whose molecules were represented as in Fig. 1.10. 

Students who do well on multiple-choice exams are so well prepared that they can easily find the correct answer, but other students do well because they are perceptive enough to identify and avoid the distracters. Much research has been done on how best to study for, and complete, multiple-choice questions. You can find some of this research by using your favorite Internet search engine, but here are a few tips that many chemistry students find useful. 

My main advice to the student undertaking a chemical engineering design project is don t work in a vacuum . By this I mean obtain information and help from as many sources as you can find. Do not assume that you alone can, or should, complete this project unaided. Talk to the project supervisor, other lecturers in your department, lecturers in other departments and at other universities and colleges, other students, technicians, librarians, professional engineers, research students, officers of the professional institutions, etc. Some of these people may not be able to help, or may not want to however, it is usually possible to find some helpful and sympathetic persons who can offer... 

If African American students do achieve at a higher rate than the total student body, there may be an Avis effect we are number two, so we try harder. In any event, these students are producing some excellent work across the department in all research groups. In that sense alone, this program is a success. 

Dirac s penchant for silence had an accompanying effect. He worked alone. After he was appointed Lucasian Professor at Cambridge in 1932, the position once held by Sir Isaac Newton, he did not accept many research students. His colleagues knew very little about what Dirac was doing until his work appeared in completed form. Sir Nevill Mott, a Cambridge colleague who was about as close to Dirac as anyone, said, all Dirac s discoveries just sort of fell on me and there they were. I never heard him talk about them, or he hadn t been in the place chatting about them. They just came out of the sky. ... 

Suggest that students do research concerning which gases produce the different colors of fluorescent lights. 

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