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Showing 346 to 360 of 369 results Save | Export
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Kimbrough, Doris R.; And Others – Journal of Chemical Education, 1995
Presents a laboratory exercise that focuses on societal concerns about the use of pesticides in order to introduce students to the problems of science and public policy. The exercise is a dry laboratory with a role-playing activity centered in an imaginary agricultural community. (DDR)
Descriptors: Environmental Education, Environmental Influences, Higher Education, Laboratory Experiments
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Niaz, Mansoor – Journal of Chemical Education, 1989
Defines M-demand as the maximum number of schemes that the subject must activate simultaneously in the course of executing a task. Discusses the effect of M-demand on problem solving. Uses algorithms to reduce M-demand. Describes the role of algorithms in problem solving. (MVL)
Descriptors: Algorithms, Chemistry, Cognitive Development, Cognitive Processes
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Bering, C. Larry – Journal of Chemical Education, 1994
Describes the weekend science workshop on enzymes and includes several projects that involve students directly, parts of which can be incorporated into a traditional chemistry, biology, or physical science course at the secondary level. Subjects include catalysts and catalytic converters in cars, enzymes as consumer products and in industrial…
Descriptors: Chemistry, Consumer Science, Enzymes, Group Activities
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Feenstra, T. P. – Journal of Chemical Education, 1979
The calculation of concentrations in the case of many simultaneous equilibria can be reduced to a search for a local minimum of a function of n variables, in which n denotes the number of mass balances involved. The method is simple and time-saving, but requires the availability of a computer. (author/BB)
Descriptors: Chemical Equilibrium, Chemistry, Computers, Laboratory Techniques
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Kenkel, John – Journal of Chemical Education, 1986
Discusses the need for hands-on training for technician-level chemists. Describes a technician training program at Southeast Community College that emphasizes wastewater plant operations and laboratories. Outlines the course sequence for the six-quarter environmental laboratory technician curriculum. (TW)
Descriptors: Chemistry, College Science, Environmental Education, Experiential Learning
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Earl, Boyd L. – Journal of Chemical Education, 1989
Notes that the rigorous kinetic theory, based on the Boltzmann equation, does not yield exact results although some texts claim this to be so. Stresses that they should be presented as approximations with an indication that refinements in the values are possible. (MVL)
Descriptors: Chemistry, College Science, Diffusion (Physics), Inorganic Chemistry
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Haas, Thomas J.; Kichner, Jerzy J. – Journal of Chemical Education, 1987
Describes a course offered at the United States Coast Guard Academy that deals with the marine transportation of hazardous materials. Outlines the major topics covered in the course, including marine transportation regulations. Discusses the use of lectures, laboratory demonstrations, and "hands-on" activities in the instructional…
Descriptors: Chemistry, College Science, Course Descriptions, Demonstrations (Educational)
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Batt, Russell H., Ed. – Journal of Chemical Education, 1988
Notes two uses of computer spreadsheets in the chemistry classroom. Discusses the general use of the spreadsheet to easily provide changing parameters of equations and then replotting the results on the screen. Presents a molecular orbital spreadsheet calculation of the LCAO-MO approach. Supplies representative printouts and graphs. (MVL)
Descriptors: Atomic Structure, Chemistry, College Science, Computer Graphics
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Miller, Dennis J. – Journal of Chemical Education, 1978
Conflicting views have been put forward on the derivation of the distribution of solubilized molecules among micelles. This stems from failure to consider the arrangement of the solubilized molecules in the micelles. In the treatment presented enthalpy effects are ignored as they are not amenable to a simple general theory. (Author/BB)
Descriptors: Chemical Bonding, Chemistry, Higher Education, Mathematics
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Davies, William G.; Moore, John W. – Journal of Chemical Education, 1980
Discusses advantages to the use of SI units in dealing with proportionality problems, with particular emphasis on stoichiometric relationships. A table lists conversion relationships commonly used in chemistry, and a single-step "roadmap" is provided for each relationship. (CS)
Descriptors: Chemistry, College Science, Higher Education, Metric System
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Matsen, F. A. – Journal of Chemical Education, 1972
A course for superior freshmen for both science and liberal arts majors that satisfies the freshman chemistry requirement is discussed. It has been taught for six years and utilizes the new math'' which is based on the elementary concept of a set. A syllabus for the two semesters is included. (DF)
Descriptors: Chemistry, College Science, Course Descriptions, General Education
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Ramette, R. W. – Journal of Chemical Education, 1988
Describes a take-home exam story problem based on stoichiometry. Requires the student to determine the percentage of phosphoric acid in a large container of nitric acid if a man fell into it. Provides assumptions, clues, and an acceptable solution. (MVL)
Descriptors: Chemical Analysis, Chemistry, College Science, Computation
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Graham, D. M. – Journal of Chemical Education, 1989
Provides some significant figure rules used in chemistry including the general theoretical basis; logarithms and antilogarithms; exponentiation (with exactly known exponents); sines and cosines; and the extreme value rule. (YP)
Descriptors: Chemistry, College Science, Exponents (Mathematics), Functions (Mathematics)
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Pacer, Richard A. – Journal of Chemical Education, 2000
Describes how to incorporate the concept of significant figures into science activities to promote understanding. Provides helpful classroom examples using measurements of volume and length. (SAH)
Descriptors: Decimal Fractions, Mathematical Applications, Mathematics Education, Measurement Equipment
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Strommen, Dennis P. – Journal of Chemical Education, 1979
Examples are presented of the use of the direct product in chemical group theory. (BB)
Descriptors: Chemistry, Computation, Higher Education, Instructional Materials
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