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Santos, Elvira Santos; Gavilan Garcia, Irma Cruz; Lejarazo Gomez, Eva Florencia – Journal of Chemical Education, 2004
A comprehensive program in the field of green chemistry, which concentrates on processing and managing of wastes produced during laboratory experiments, is presented. The primary aim of the program is to instill a sense of responsibility and a concern for the environment through organic chemistry education.
Descriptors: Laboratory Experiments, Organic Chemistry, Sanitation, Environmental Education
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Green, William J.; Elliott, Curtis; Cummins, R. Hays – Journal of Chemical Education, 2004
The importance of introducing various projects or activities as a motivation towards inquiry-based learning, also satisfies the need for first year chemistry students to transfer scientific theory into practice. This approach, combined with the traditionally written laboratory methods, develops creative skills, and the spirit of exploration…
Descriptors: Science Laboratories, Chemistry, Science Education, Teaching Methods
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Oliveira, Luiz C.A.; A. Rios, Rachel V.R.; Fabris, Jose D.; Lago, Rachel M.; Sapag, Karim – Journal of Chemical Education, 2004
An exciting laboratory environment is activated by the preparation and novel use of magnetic materials to decontaminate water through adsorption and magnetic removal of metals and organics. This uncomplicated technique is also adaptable to the possible application of adsorbents to numerous other environmental substances.
Descriptors: Laboratory Experiments, Water Quality, Environmental Education, Magnets
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Marrs, Peter S. – Journal of Chemical Education, 2004
An exercise that provides a hands-on demonstration of the hydrolysis of aspirin is presented. The key to understanding the hydrolysis is recognizing that all six process may occur simultaneously and that the observed rate constant is the sum of the rate constants that one rate constant dominates the overall process.
Descriptors: Organic Chemistry, Student Projects, Science Instruction, Experiential Learning
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Halkides, Christopher J. – Journal of Chemical Education, 2004
Classical phenylketonuria (PKU) is caused by a lack activity in the enzyme phenylalanine hydroxylase, leading to elevated concentrations of phenylalanine in the blood. A simple demonstration and three advanced demonstrations of a spot test for phenylpyruvic acid and its relationship to phenylketonuria are given.
Descriptors: Demonstrations (Educational), Science Activities, Science Instruction, Chemistry
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Holman, John; Pilling, Gwen – Journal of Chemical Education, 2004
Chemical thermodynamics that is often considered abstract and demanding could be made more accessible by taking a contextualized approach. The trial of a course designed for chemistry majors dealing with gas laws and the first law of thermodynamics in the existing course are illustrated.
Descriptors: Thermodynamics, Science Instruction, Chemistry, Case Studies
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Hoffmann, Markus M. – Journal of Chemical Education, 2004
A classroom exercise that engages students as a team to develop an intuitive understanding of P-V-T phase behavior of a pure fluid is discussed. This exercise, when implemented in classrooms over a period of three years revealed that the students achieved a deeper level of understanding about phase behavior.
Descriptors: Chemistry, Science Instruction, Class Activities, Teamwork
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Myrick, M. L.; Colavita, P. E.; Greer, A. E.; Long, B.; Andreatta, D. – Journal of Chemical Education, 2004
The measurement of the infrared rotation-vibration spectrum of HCl(g) is a common experiment in the physical chemistry laboratory, which allows students the opportunity to explore quantization of rotational states in diatomic molecules. It is found that the CO2 vibration-rotation spectrum if used as an addition to the HCl experiment would give the…
Descriptors: Chemistry, Science Instruction, Laboratory Experiments, Teaching Methods
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Seen, Andrew J. – Journal of Chemical Education, 2004
An upper-level undergraduate experiment that, in addition to introducing students to catalysis using an air sensitive transition-metal complex, introduces the use of a solid acid as an activator and support for the catalyst is developed. The increased stability acquired in the course of the process affords the opportunity to characterize the…
Descriptors: Chemistry, Science Instruction, Laboratory Experiments, Teaching Methods
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Denyer, Gareth; Hancock, Dale – Journal of Chemical Education, 2002
Describes an easily implemented method that allows the generation and analysis of graded multiple-choice examinations. The technique, which uses standard functions in user-end software (Microsoft Excel 5+), can also produce several different versions of an examination that can be employed to prevent plagiarism. (MM)
Descriptors: Chemistry, Evaluation Methods, Higher Education, Plagiarism
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Manche, Emanuel P.; Ewing, Galen W., Ed. – Journal of Chemical Education, 1979
Thermoluminescence and its application to archeological dating are considered in this article. Descriptions are given of the method, the required doses, absolute and relative dating, complications, and the relation of this type of dating to other methods. (SA)
Descriptors: Ancient History, Archaeology, Chemistry, Instrumentation
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Gerhold, George; And Others – Journal of Chemical Education, 1979
Presents a general introduction to microprocessors and microcomputers. Guidelines for purchasing software and hardware are intended to familiarize potential buyers with the current equipment on the market and the terminology in use. (SA)
Descriptors: Chemistry, College Science, Computer Oriented Programs, Computers
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Myers, R. Thomas – Journal of Chemical Education, 1979
Discusses the Pauling electronegativity concept which rationalizes several kinds of chemical reactions of covalent substances. Electronegativity differences applied to some reactions are demonstrated. (SA)
Descriptors: Chemical Bonding, Chemical Reactions, Chemistry, College Science
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Matsubara, Akira; Nomura, Kazuo – Journal of Chemical Education, 1979
Various phenomena in chemistry and biology can be understood through Gibbs energy utilization. Some common phenomena in chemistry are explained including neutralization, hydrolysis, oxidation and reaction, simultaneous dissociation equilibrium of two weak acids, and common ion effect on solubility. (Author/SA)
Descriptors: Biology, Chemical Reactions, Chemistry, College Science
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Garst, John F. – Journal of Chemical Education, 1979
An explanation of strong base effect demonstrates that deprotonation of a reactant shifts an equilibrium toward reactants in the same way that a deprotonation of a product shifts it towards products. (Author/SA)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Science
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