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Peer reviewed
Rayner-Canham, Geoff – Journal of College Science Teaching, 1993
Presents historical background and modern explanations for the popular demonstration of showing conductivity of solutions through the insertion of a light-bulb conductivity tester into deionized water and water with salt in it. (PR)
Descriptors: Chemistry, College Science, Demonstrations (Educational), Electricity
Peer reviewed
Ratliff, Judy L. – Journal of Chemical Education, 1997
Discusses modifications to general education or introductory chemistry courses that allow visually impaired students to participate productively. Describes a strategy for teaching about elements and density, and the construction of a conductivity tester for visually impaired students. (JRH)
Descriptors: Chemistry, Educational Strategies, Higher Education, Introductory Courses
Peer reviewed
James, C. – Physics Education, 1988
Discusses the use of logarithm and reciprocal graphs in the college physics classroom. Provides examples, such as electrical conductivity, reliability function in the Weibull model, and the Clausius-Clapeyron equation for latent heat of vaporation. Shows graphs with weighting of points. (YP)
Descriptors: College Science, Graphs, Higher Education, Physics
Peer reviewed
Thomas, Nicholas C.; And Others – Journal of Chemical Education, 1989
Presents a laboratory experiment which illustrates the formation of tris(phenanthroline)cobalt complexes in the 2+ and 3+ oxidation states, the effect of coordination on reactions of the ligand, and the use of a ligand displacement reaction in recovering the transformed ligand. Uses IR, UV-VIS, conductivity, and NMR. (MVL)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science