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  Home > JCE Print > Journal of Chemical Education > Issues > 2008  > August  >
In the Laboratory
Measuring the Density of a Sugar Solution
A General Chemistry Experiment Using a Student-Prepared Unknown
Karen I. Peterson
Department of Chemistry, San Diego State University, San Diego, CA 92182-1030
Cover
August 2008
Vol. 85 No. 8
p. 1089

Abstract
The experiment developed in this article addresses the concept of equipment calibration for reducing systematic error. It also suggests simple student-prepared sucrose solutions for which accurate densities are known, but not readily available to students. Densities are measured with simple glassware that has been calibrated using the density of water. By careful work, students can determine the density to within 0.5%. This allows accuracy to be a major component of the final grade.
Supplement
Student handouts; Prelab questions and answers; Sample results
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Citation
Peterson, Karen I. J. Chem. Educ. 2008, 85, 1089.
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Keywords
Calibration; Carbohydrates; First-Year Undergraduate / General; Hands-On Learning / Manipulatives; High School / Introductory Chemistry; Laboratory Instruction; Physical Chemistry; Physical Properties; Problem Solving / Decision Making; Quantitative Analysis; Solutions / Solvents
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History
Created:
Last Updated:
6/23/2008
7/2/2008
 Caution! 
Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations.
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