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The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 11 Issue 2 (2006) pp 102-104

A Green, Clean Colligative Properties Experiment

Sarah Iacobucci, Christine Jaworek-Lopes,*, Pulin Wang, Lien Phun, Gregory Wilbur, and Adam Dobson

Emmanuel College, Boston, MA 02115; Tufts University, Department of Chemistry, Medford, MA 02155; and Phillips Academy, Andover, MA 01810,
Received August 17, 2006. Accepted December 4, 2006.

Published online: 14 March 2006

Abstract. In the undergraduate chemistry laboratory, a common experiment is the use of colligative properties to determine the molar mass of a solute. Some drawbacks from past procedures have been the use of large quantities of malodorous, toxic, and expensive solutes and solvents. This green procedure uses small quantities of nontoxic, inexpensive reagents that are readily converted into biodegradable soap in the final cleanup step.

Key Words: Laboratories and Demonstrations; general chemistry

(*) Corresponding author. (E-mail:

Article in PDF format (277 KB) HTML format

Issue date: April 1, 2006

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