1-10. The Unit Factor Method (Dimensional Analysis)
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Improving Conceptions in Analytical Chemistry: ci Vi = cf VfMargarita Rodríguez-López and Arnaldo Carrasquillo Jr. A common misconception related to analytical chemistry, which may be generalized as the failure to recognize and to account analytically for changes in substance density, is discussed. A cautionary example is made through the use of mass-based units of composition during volumetric dilution. The correct application of the volumetric dilution equation ci Vi = cf Vf is discussed. A quantitative description of the systematic error introduced by incorrect use of the volumetric dilution equation is also specified. Rodríguez-López, Margarita; Carrasquillo, Arnaldo, Jr. J. Chem. Educ.2005, 82, 1327.
Measuring with a Purpose: Involving Students in the Learning ProcessMetz, Patricia A.; Pribyl, Jeffrey R. Constructivist learning activities for helping students to understand measurement, significant figures, uncertainty, scientific notation, and unit conversions. Metz, Patricia A.; Pribyl, Jeffrey R. J. Chem. Educ.1995, 72, 130.
