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Fendler, Janos H. – Journal of Chemical Education, 1983
Describes common artificially produced organized media such as colloids, surfactants, and polymers and their usefulness in studying complex biochemical processes. Discusses selected recent photophysical and photochemical exploitations of these systems, including artificial photosynthesis, in situ generation of colloidal gold and platinum,…
Descriptors: Biochemistry, Chemical Reactions, Chemistry, College Science
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Belloli, Robert C. – Journal of Chemical Education, 1983
Discusses the confusion and erroneous conclusions that can result from the overuse and misuse of the circle notation to represent aromaticity in polycylic aromatic hydrocarbons. Includes nature of the problem, textbook treatment, and a possible compromise method of representation. (Author/JN)
Descriptors: Chemical Bonding, Chemistry, College Science, High Schools
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Boehm, Garth; Dwyer, Mark – Journal of Chemical Education, 1981
Describes an experiment providing an experimental introduction to vibrational spectroscopy and experience in using an elementary vacuum line. The experiment, using a gas cell charged with methanol, is completed in a three-hour laboratory period and is directed toward understanding vibrational spectroscopy rather than the diagnostic value of the…
Descriptors: Chemical Bonding, Chemistry, College Science, Higher Education
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Aklonis, J. J. – Journal of Chemical Education, 1981
Mechanical properties (stress-strain relationships) of polymers are reviewed, taking into account both time and temperature factors. Topics include modulus-temperature behavior of polymers, time dependence, time-temperature correspondence, and mechanical models. (JN)
Descriptors: Chemistry, College Science, Fluid Mechanics, Higher Education
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Bazuin, C. G.; Eisenberg, A. – Journal of Chemical Education, 1981
Demonstrates how the incorporation of relatively low amounts of ionic material into nonionic polymers affects the structure and properties of these polymers. The extent to which properties are altered depends on dielectric constant of the backbone, position and type of ionic group, counterion type, ion concentration, and degree of neutralization.…
Descriptors: Chemical Bonding, Chemical Reactions, Chemistry, College Science
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Cox, Philip J. – Journal of Chemical Education, 1982
The application of molecular mechanics (a nonquantum mechanical method for solving problems concerning molecular geometries) to calculate force fields for n-butane and cyclohexane is discussed. Implications regarding the stable conformations of the example molecules are also discussed. (Author/SK)
Descriptors: Chemical Bonding, Chemistry, College Science, Computer Programs
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Wilson, David B. – American Journal of Physics, 1981
Surveys the research of scientists like Joule, Kelvin, Maxwell, Clausius, and Boltzmann as it comments on the basic conceptual issues involved in the development of a more precise kinetic theory and the idea of a kinetic atom. (Author/SK)
Descriptors: Atomic Structure, College Science, Higher Education, Kinetic Molecular Theory
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Ley-Koo, E.; And Others – American Journal of Physics, 1980
Presented are forms of harmonic oscillator attraction and Coulomb wave functions which can be explicitly constructed and which lead to numerical results for the energy eigenvalues and eigenfunctions of the atomic system. The Schrodinger equation and its solution and specific cases of muonic atoms illustrating numerical calculations are included.…
Descriptors: Atomic Structure, College Science, Energy, Higher Education
Farmer, Nick A.; O'Hara, Michael P. – Database, 1980
Describes features of a new type of chemical database which provides the ability to search for substances sharing particular structural characteristics. Search concepts are examined in detail, and menu selection of "screens," system commands, and interpretation of results (which appear in the form of chemical bond structures) are…
Descriptors: Chemical Analysis, Chemical Bonding, Databases, Information Sources
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Goodfriend, P. L. – American Journal of Physics, 1979
It is shown that exact pseudopotentials for excited states of hydrogen atoms can be derived. A very simple, novel application of pseudopotential method which displays vividly some of its limitations is presented. (Author/GA)
Descriptors: Atomic Theory, College Science, Energy, Higher Education
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Rhodes, William – Journal of Chemical Education, 1979
Develops the concept of oscillatory v dissipative limits as it applies to electronic excited state processes in molecular systems. Main emphasis is placed on the radiative and nonradiative dynamics of the excited state of a molecule prepared by interaction with light or some other excitation source. (BT)
Descriptors: Chemistry, College Science, Higher Education, Kinetic Molecular Theory
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Ballhausen, C. J. – Journal of Chemical Education, 1979
This is part III of an explanation of the influence and development of quantum mechanical ideas as applied to inorganic complexes. (Author/SA)
Descriptors: Chemical Bonding, Chemistry, College Science, Higher Education
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Herron, J. Dudley, Ed. – Journal of Chemical Education, 1977
Discusses a comparison of the relative effects on the stomach of a strong acid, hydrochloric acid, and a weak acid, aspirin. Also discusses molecular geometrics using the Valence Shell Electron Repulsion Theory. (MLH)
Descriptors: Chemical Equilibrium, Chemistry, College Science, Higher Education
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Ribas, J.; And Others – Journal of Chemical Education, 1977
Describes an advanced inorganic chemistry experiment in which students prepare two coordination compounds and study their stereochemistry using infrared spectroscopy. (MLH)
Descriptors: Chemical Analysis, Chemistry, College Science, Coordination Compounds
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McBride, John; Villanueva, Roy – Science Scope, 1997
Describes an activity in which students apply the scientific method as they explore each step of crystal growing. Students select variables, record daily observations, and participate in discussions about the differences in crystal formation. Crystal recipe and procedures are provided. (DDR)
Descriptors: Chemistry, Crystallography, Elementary Secondary Education, Hands on Science
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