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Showing 1,381 to 1,395 of 1,448 results Save | Export
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Peake, Barrie M.; Grauwmeijer, Roger – Journal of Chemical Education, 1981
Describes a Simple Huckel Molecular Orbital (SHMO) computer program written in BASIC and suitable for use on a variety of common microcomputers. (SK)
Descriptors: Chemistry, College Science, Computer Oriented Programs, Computer Programs
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Laing, Michael – Journal of Chemical Education, 1989
Finds that a logical application of the simple rules of the molecular orbital bonding theory for diatomic molecules predicted the existence of three spin isomers of the oxygen molecule: one triplet form with two unpaired electrons and two singlet forms with all electrons paired. (MVL)
Descriptors: Atomic Structure, Chemical Analysis, Chemical Reactions, Chemistry
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Gargallo, Maria Fe; And Others – Journal of Chemical Education, 1988
Describes an experimental procedure to acquaint inorganic chemistry students with stereochemical concepts using tris-(2,3-butanediamine)cobalt(III). Notes two isomeric forms exist and both form metal chelates. Separation is accomplished by chromatography and analysis is by NMR and infrared spectroscopy. Provides spectra of isomers. (MVL)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, Chromatography
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Vodopich, Darrell S.; Moore, Randy – American Biology Teacher, 1989
Describes two simple procedures allowing students to experiment with living membranes and to relate their results to fundamental membrane structure. Provides instructions for determining the effects of temperature and organic solvent stress on cellular membranes, and spectrophotometric analysis. (RT)
Descriptors: Biochemistry, Biological Sciences, Biology, College Science
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Chesick, John P. – Journal of Chemical Education, 1989
Provides a brief introduction with some definitions and properties of Fourier transforms. Shows relations, ways of understanding the mathematics, and applications. Notes proofs are not included but references are given. First of three part series. (MVL)
Descriptors: Chemical Analysis, Chemical Bonding, Chemical Nomenclature, Chemistry
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Ealy, Julie B. – Journal of Science Education and Technology, 2004
Integration of molecular modeling into General Chemistry lab encourages students to dually process molecular concepts both verbally and pictorially. When students are tested utilizing questions not previously encountered the dual processing of information can contribute to a transfer to knowledge. General Chemistry students utilized molecular…
Descriptors: Students, Chemistry, Molecular Structure, Pretests Posttests
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Fritz, James S. – Analytical Chemistry, 1987
Discusses the importance of ion chromatography in separating and measuring anions. The principles of ion exchange are presented, along with some applications of ion chromatography in industry. Ion chromatography systems are described, as well as ion pair and ion exclusion chromatography, column packings, detectors, and programming. (TW)
Descriptors: Chemical Analysis, Chemical Bonding, Chemical Industry, Chemical Reactions
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Enemark, John H. – Journal of Chemical Education, 1988
Presents the organization of a one-semester graduate course in structural chemistry including lectures and problems. Discusses the coverage of diffraction from real crystals and structure determination. Summarizes experiments on real crystals conducted by students in the X-ray laboratory. (CW)
Descriptors: Atomic Structure, Chemistry, College Science, Course Content
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Walters, D. Eric; And Others – Journal of Chemical Education, 1986
Discusses ways that chemists have traditionally used models to represent chemical structures. Suggests new ways to construct three-dimensional models of receptor sites using thermoplastics or heavy aluminum foil. Provides sketches and photographs of several models. Points out the advantages of using such models over traditional two-dimensional…
Descriptors: Chemical Bonding, Chemical Reactions, Chemistry, College Science
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Marchant, G. W. – School Science Review, 1983
Suggests two methods of developing the study of the noble gases: first, the discovery of the elements and recent discovery of xenon show the human face of chemistry (historical development); second, the properties of noble gas compounds (particularly xenon) can be used to test the framework of conventional chemistry. (Author/JM)
Descriptors: Atomic Structure, Chemical Bonding, Chemical Reactions, Chemistry
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Phillips, P. S. – School Science Review, 1981
Describes the formation, chemical structure, and several uses of coal. The history of coal usage, production processes, coal tar products, and production of petroleum and other hydrocarbons from coal are also described. (DS)
Descriptors: College Science, Earth Science, Energy, Fuels
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Baum, Rudy M. – Chemical and Engineering News, 1989
Discusses a symposium which focused on the influence of inorganic chemistry on organic synthesis, the impact of organic chemistry on biochemistry and vice versa, chemical reaction dynamics, and advances in inorganic chemistry. Explains the purpose of the symposium was to illustrate the intellectual dynamism of modern chemistry. (MVL)
Descriptors: Biochemistry, Chemical Analysis, Chemical Industry, Chemical Nomenclature
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Knudson, Stephen K.; Noid, D. W. – Journal of Chemical Education, 1989
Discusses a new method for determining the eigenvalues of the Schroedinger equation when the potential energy function does not have a simple form. Describes the mathematical methods and provides an application. Lists limitations to the method. (MVL)
Descriptors: Atomic Structure, Chemical Analysis, Chemistry, College Science
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Fernandez, G. M.; And Others – Journal of Chemical Education, 1988
Introduces different methodological strategies in analyzing potential energy surfaces (PES) used in chemical reactivity studies. Discusses the theory of PES and gives examples to be used for student work. Provides procedures for calculating normal coordinates and vibrational properties of an activated complex. (ML)
Descriptors: Chemical Bonding, Chemical Equilibrium, Chemical Reactions, Chemistry
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Russell, Arlene A.; Chapman, Orville L.; Wegner, Patrick A. – Journal of Chemical Education, 1998
Outlines the development of a curriculum in molecular science that prepares those students who have a deep understanding of chemistry concepts and principles, have collaboration skills, are able to use modern technology, and can write about chemistry. (DDR)
Descriptors: Active Learning, Chemistry, Communication Skills, Concept Formation
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