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A Simple Demonstration Model of Osmosis

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Joseph G. Morse

Department of Chemistry, Western Washington University, Bellingham, WA 98225-9150

Ed Vitz

Department of Chemistry, Kutztown University, Kutztown, PA 19530

J. Chem. Educ., 1999, 76 (1), p 64

DOI: 10.1021/ed076p64

Publication Date (Web): January 1, 1999

Abstract

A simple device constructed from a wire screen, a large beaker, beans, and oats is described. It provides a simple and effective visual model of the phenomenon of osmosis and, by extension, the origin of other colligative properties of solutions.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Demonstrations

Keywords (Feature):

Tested Demonstrations

Keywords (Subject):

Solutions / Solvents

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Citing Articles

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Kinetics of the Osmotic Hydration of Chickpeas
Gabriel Pinto , Ali Esin
Journal of Chemical Education2004 81 (4), 532
- Kinetics of the Osmotic Hydration of Chickpeas
  Gabriel Pinto , Ali Esin
  Journal of Chemical Education2004 81 (4), 532
  An experiment examining the swelling of chickpeas as they are soaked in water is presented to introduce students to topics such as osmotic flow, mass transfer, diffusion, kinetics of hydration, modeling, and estimation of activation energy. The experiment ...
  Abstract | Hi-Res PDF | PDF w/ Links
Using Computer-Based Visualization Strategies to Improve Students' Understanding of Molecular Polarity and Miscibility
Michael J. Sanger and Steven M. Badger II
Journal of Chemical Education2001 78 (10), 1412
- Using Computer-Based Visualization Strategies to Improve Students' Understanding of Molecular Polarity and Miscibility
  Michael J. Sanger and Steven M. Badger II
  Journal of Chemical Education2001 78 (10), 1412
  This study reports how instruction including visualization strategies associated with computer animations and electron density plots affected students' conceptual understanding of two chemistry topics. Two sets of students responded to several conceptual ...
  Abstract | Hi-Res PDF | PDF w/ Links