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Logan, S. R. – Journal of Chemical Education, 1990
Discussed are the kinetic interactions of these chemical processes and the determination of the actual order of such reactions. Included are multiple exchange, catalytic exchange with deuterium, and depletion of the original substrate. (CW)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
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MacDonald, J. J. – Journal of Chemical Education, 1990
Suggestions for the use of two different conventions in difference and rate terms in thermodynamics are made. It is shown how this approach lends itself to an accurate and concise discussion of function changes for a chemical reaction. (CW)
Descriptors: Chemical Analysis, Chemical Equilibrium, Chemical Reactions, Chemistry
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Campbell, Mark L.; Waite, Boyd A. – Journal of Chemical Education, 1990
Provided is a rebuttal to an argument concerning the use of Ka values for water and the hydronium ion. The derivation of new values as a result of the treatment of the water as the solvent and using a Raoult's Law standard state is discussed. (CW)
Descriptors: Acids, Chemical Analysis, Chemical Equilibrium, Chemical Reactions
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Mealli, Carlo; Proserpio, Davide M. – Journal of Chemical Education, 1990
A collection of Molecular Orbital (MO) programs that have been integrated into routines and programs to illustrate MO theory are presented. Included are discussions of Computer Aided Composition of Atomic Orbitals (CACAO) and Walsh diagrams. (CW)
Descriptors: Chemical Analysis, Chemistry, College Science, Computer Assisted Instruction
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Fortman, John J.; Battino, Rubin – Journal of Chemical Education, 1990
Described are demonstrations provided for secondary school students designed to illustrate the fun and wonder of chemistry and learning by experimentation. A list of the contents for the videotapes and suggestions for discussions using the videotapes are provided. (CW)
Descriptors: Audiovisual Aids, Chemical Reactions, Chemistry, Demonstrations (Educational)
Peer reviewed Peer reviewed
Gilbert, George L., Ed. – Journal of Chemical Education, 1990
Presented are two demonstrations; "Heat of Solution and Colligative Properties: An Illustration of Enthalpy and Entropy," and "A Vapor Pressure Demonstration." Included are lists of materials and experimental procedures. Apparatus needed are illustrated. (CW)
Descriptors: Chemistry, College Science, Demonstrations (Educational), Higher Education
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Ma, Yinfa; Yeung, Edward S. – Journal of Chemical Education, 1990
Described is a simple and interesting chromatography experiment using three different fluorescence detection principles for the determination of caffeine, saccharin and sodium benzoate in beverages. Experimental procedures and an analysis and discussion of the results are included. (CW)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, Chromatography
Peer reviewed Peer reviewed
Brown, Trevor M.; And Others – Journal of Chemical Education, 1990
Described is an experiment which may be carried out quickly using tungsten-filament irradiation. Materials, experimental procedures, and results are discussed. Procedures for filtration on silica gel are appended. (CW)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
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Mabbott, Gary A. – Journal of Chemical Education, 1990
Experiments designed to help undergraduate students gain experience operating instruments and interpreting gas chromatography and mass spectrometry data are presented. Experimental reagents, procedures, analysis, and probable results are discussed. (CW)
Descriptors: Biochemistry, Chemical Analysis, Chemical Reactions, College Science
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Ewing, Galen W. – Journal of Chemical Education, 1990
Safety issues specifically related to the analytical laboratory are discussed including hazardous reagents, transferring samples, cleaning apparatus, eye protection, and equipment damage. Special attention is given to techniques which not only endanger the technician but also endanger expensive equipment. (CW)
Descriptors: Accident Prevention, Chemical Analysis, Chemistry, College Science
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Auf der Heyde, Thomas P. E. – Journal of Chemical Education, 1990
This tutorial is intended to introduce factor and cluster analysis at a level that will afford the senior student or the practicing chemist some insights into the workings of the computer packages employing these methods, without being overwhelming with mathematical detail or process. Included are basic terms and working examples. (CW)
Descriptors: Chemistry, Cluster Analysis, College Mathematics, College Science
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Hansen, David E.; Raines, Ronald T. – Journal of Chemical Education, 1990
Discussed is the fundamental role that the favorable free energy of binding of the rate-determining transition state plays in catalysis. The principle that all of the catalytic factors discussed are realized by the use of this binding energy is reviewed. (CW)
Descriptors: Atomic Structure, Biochemistry, Chemical Reactions, Chemistry
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Brady, Joseph A.; And Others – Journal of Chemical Education, 1990
Discussed is the performance of college students on the task of solving chemistry problems involving Lewis structures. Difficulty of the task and of individual problems is described. A taxonomy of skills associated with Lewis structures is presented. (CW)
Descriptors: Atomic Structure, Chemistry, College Science, Higher Education
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Davis, Alan; Speer, Henry L. – Journal of Chemical Education, 1990
Presented is the course outline and proposed science content for this course. The structure, sessions, and evaluation of the course are discussed. (CW)
Descriptors: Chemistry, College Science, Course Content, Course Descriptions
Peer reviewed Peer reviewed
Rich, Joe, Ed. – Journal of Chemical Education, 1990
Described are the design, construction, and uses of two pieces of laboratory equipment. Included are a multipurpose meter, "Calo-pH Meter," and a device for collecting water samples for determining dissolved oxygen content. (CW)
Descriptors: Calorimeters, Chemistry, College Science, Electronics
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