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• Flame Tests That Are Portable, Storable, and Easy To UseJournal of Chemical Education

  • Flame Tests That Are Portable, Storable, and Easy To Use

    George M. McKelvy
    Journal of Chemical Education 1998 75 (1), p 55

    Abstract:

    Over the years, a great many variations for flame tests have been tried for use as a lecture demonstration or in a laboratory setting. All of the variations seem to have had some draw back. Most notable of these problems is the duration of color, but also ...

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• Looking behind the Spreadsheet TrendlineJournal of Chemical Education

  • Looking behind the Spreadsheet Trendline

    William F. Coleman , Edward W. Fedosky
    Journal of Chemical Education 2006 83 (12), p 1884

    Abstract: Presents a visual approach to linear least-squares curve fitting that drives home the idea of minimizing the sum of the squares of the deviations in order to find the best fit to a set of data that are being described by a linear relationship.

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• A Diode-Laser Based Automated Timing Interface for Rapid Measurement of Liquid ViscosityJournal of Chemical Education

  • A Diode-Laser Based Automated Timing Interface for Rapid Measurement of Liquid Viscosity

    R. Craig Urian and Lutfur R. Khundkar
    Journal of Chemical Education 1998 75 (9), p 1135

    Abstract:

    We describe an exercise in experimental design suitable for the undergraduate laboratory, involving the construction of an automated timing interface for laminar liquid flow in glass. In many instructional physical chemistry laboratories, viscometry is ...

    Abstract | PDF w/ Links | Hi-Res PDF