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Journal of Chemical Education | 99 |
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Canada | 1 |
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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
Peer reviewed
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
Peer reviewed
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
Peer reviewed
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
Peer reviewed
Vella, Alfred J. – Journal of Chemical Education, 1990
This paper suggests a nontraditional pedagogic approach to the subject of redox reactions and electrode potentials suitable for freshman chemistry. Presented is a method for the representation of galvanic cells without the introduction of the symbology and notation of conventional cell diagrams. (CW)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Freshmen
Peer reviewed
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
Peer reviewed
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
Peer reviewed
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
Birk, James P., Ed. – Journal of Chemical Education, 1990
Reviewed are six computer programs which may be useful in teaching college level chemistry. Topics include dynamic data storage in FORTRAN, "KC?DISCOVERER," pH of acids and bases, calculating percent boundary surfaces for orbitals, and laboratory interfacing with PT Nomograph for the Macintosh. (CW)
Descriptors: Atomic Structure, Chemical Reactions, Chemistry, College Science
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
Peer reviewed
Paris, Michel R.; Aymes, Daniel J. – Journal of Chemical Education, 1990
The principles and procedures for three enthalpimetric measurement experiments including a determination of the water equivalent mass of the calorimeter, the calibration of the instrument, and determination of the dissociation heat of boric acid performed with a teacher-made instrument are presented. Suggestions for further experiments are…
Descriptors: Calorimeters, Chemical Reactions, Chemistry, College Science
Peer reviewed
Gilbert, George L., Ed. – Journal of Chemical Education, 1990
Described are demonstrations designed to reveal the important "nonsolvent" properties of water through its interaction with a toy called "Magic Sand" and other synthetic silica derivatives, especially those bonded with organic moities. The procedures for seven demonstrations along with a discussion of the effects are presented. (CW)
Descriptors: Chemical Reactions, Chemistry, College Science, Higher Education
Peer reviewed
Griswold, John R.; Rauner, Richard A. – Journal of Chemical Education, 1990
Presented are the procedures and a discussion of the results for an experiment in which students select unknown carboxylic acids, determine their melting points, and investigate their solubility behavior in water and ethanol. A table of selected carboxylic acids is included. (CW)
Descriptors: Acids, Chemical Analysis, Chemistry, College Freshmen
Peer reviewed
Champion, Timothy D.; Schwenz, Richard W. – Journal of Chemical Education, 1990
Background information, laboratory procedures, and a discussion of the results of an experiment designed to investigate the difference in energy gained from the aerobic and anaerobic oxidation of glucose are presented. Sample experimental and calculated data are included. (CW)
Descriptors: Calorimeters, Chemical Analysis, Chemical Reactions, Chemistry
Peer reviewed
Williams, Kathryn R.; And Others – Journal of Chemical Education, 1990
Discussed are the procedures and results involved in this activity. Student results in undergraduate laboratories indicate high quality results and relative ease of the analysis. (CW)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science