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Journal of Chemical Education | 16 |
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King, Roy W. | 2 |
Williams, Kathryn R. | 2 |
Berry, Vern | 1 |
Birk, James P., Ed. | 1 |
Chen, Jyh-Horung | 1 |
Feliu, Anthony L. | 1 |
Fujita, Shinsaku | 1 |
Gannaway, Susan P. | 1 |
Hall, Chadlee D. | 1 |
He, Fu-cheng | 1 |
Logan, S. R. | 1 |
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Peer reviewed
Williams, Kathryn R.; King, Roy W. – Journal of Chemical Education, 1990
Examined are some of the types of two-dimensional spectra. Their application to nuclear magnetic resonance for the elucidation of molecular structure is discussed. Included are J spectroscopy, H-H correlation spectroscopy, heteronuclear correlation spectroscopy, carbon-carbon correlation, nuclear Overhauser effect correlation, experimental…
Descriptors: Atomic Structure, Chemical Analysis, Chemistry, College Science
Peer reviewed
Feliu, Anthony L. – Journal of Chemical Education, 1990
Discussed are the properties, chemistry, generation of precursors, and use in organic synthesis of this isotope of carbon. The use of carbon-11 in research is emphasized. Pitfalls and possibilities are described. (CW)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
Peer reviewed
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
Peer reviewed
Gannaway, Susan P. – Journal of Chemical Education, 1990
Findings from a survey of 20 liberal arts colleges which did not have graduate programs in chemistry are presented. Discussed are regulations, actions taken and costs of academic laboratories regarding the disposal of hazardous waste. (CW)
Descriptors: Chemistry, College Science, Faculty, Hazardous Materials
Peer reviewed
He, Fu-cheng; And Others – Journal of Chemical Education, 1990
Presented is a technique for making various molecular models from a strip of paper. Instructions for six models including tetrahedral, trigonal bipyramid, octahedral, pentagonal bipyramid, and capped octahedron models are provided. (CW)
Descriptors: Atomic Structure, Chemistry, College Science, Higher Education
Peer reviewed
Osorio, Hernan von Marttens – Journal of Chemical Education, 1990
Proposed is a more didactic version of the electronic periodic table than is being used. The background and use of the numeric system is detailed and illustrated. (CW)
Descriptors: Atomic Structure, Chemical Bonding, Chemistry, College Science
Peer reviewed
Berry, Vern – Journal of Chemical Education, 1990
Reviewed are 15 methods for fast slide production. Methods are classified as in-hand methods and farmed-out methods of slide production. Slides are compared to transparencies as another fast presentation aid. (CW)
Descriptors: Audiovisual Aids, Chemistry, College Science, Educational Media
Peer reviewed
Robyt, John F.; White, Bernard J. – Journal of Chemical Education, 1990
Described are the composition, design, administration, and evaluation of practical examinations. A table of the composition of biochemical unknowns for analysis in practical examinations is included. (CW)
Descriptors: Biochemistry, Chemical Analysis, Chemistry, College Science
Peer reviewed
Scaife, Charles W. J.; Hall, Chadlee D. – Journal of Chemical Education, 1990
Presented is an experiment in which students recover almost 90 percent of the original lead chloride thus saving on costs of chemicals and disposal. Included are experimental procedures and a discussion of typical results. (CW)
Descriptors: Chemistry, College Science, Hazardous Materials, Higher Education
Peer reviewed
Smith, Sherrel – Journal of Chemical Education, 1990
Detailed is a method in which short pieces of teflon tubing may be used for collection tubes for collecting preparative fractions from gas chromatographs. Material preparation, laboratory procedures, and results of this method are discussed. (CW)
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science
State-of-the-Art pH Electrode Quality Control for Measurements of Acidic, Low Ionic Strength Waters.
Peer reviewed
Stapanian, Martin A.; Metcalf, Richard C. – Journal of Chemical Education, 1990
Described is the derivation of the relationship between the pH measurement error and the resulting percentage error in hydrogen ion concentration including the use of variable activity coefficients. The relative influence of the ionic strength of the solution on the percentage error is shown. (CW)
Descriptors: Chemical Analysis, Chemistry, College Science, Error of Measurement
Peer reviewed
Chen, Jyh-Horung – Journal of Chemical Education, 1989
Described is a method that can be used to obtain molecular or atomic term symbols. Several examples accompany an explanation of the method. (CW)
Descriptors: Atomic Structure, Chemical Nomenclature, Chemistry, College Science
Peer reviewed
Williams, Kathryn R.; King, Roy W. – Journal of Chemical Education, 1990
Described are six multipulse experiments with an emphasis on their application to common problems in chemistry. Exercises in relaxation time measurement, spin echoes, and polarization transfer are proposed. (CW)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
Peer reviewed
Fujita, Shinsaku – Journal of Chemical Education, 1990
Discussed are the substructures (subgraphs) of imaginary transition structures that provide an effective approach to the characterization of organic reactions. A comparison of conventional methods and this method is presented. (CW)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, Classification
Peer reviewed
Slade, Peter W.; Rayner-Canham, Geoffrey W. – Journal of Chemical Education, 1990
Described are some of the difficulties presented in these reactions by competing equilibria that are usually ignored. Situations involving acid-base equilibria, solubility product calculations, the use of ammonia as a complexing agent, and semiquantitative comparisons of solubility product values are discussed. (CW)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
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