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  Home > JCE Print > Journal of Chemical Education > Issues > 1996  > September  >
In The Laboratory
Oxygen from Hydrogen Peroxide: An Experimental Modification
James H. Burness
Department of Chemistry, The Pennsylvania State University - York Campus, 1031 Edgecomb Ave., York, PA 17403-3398
Cover
September 1996
Vol. 73 No. 9
p. 851
Abstract
A common experiment, performed at the high school and college levels, is the generation of a gas to explore molar mass and molar volume relationships. In one version of this experiment, hydrogen peroxide is decomposed by yeast to generate oxygen gas. This paper describes a simple modification to this experiment which eliminates the need for a pencil coated with petroleum jelly and dry yeast. This elimination not only prevents falling pieces of yeast from prematurely starting the reaction, but at the same time makes the reaction faster and simplifies cleanup. The modification also reduces the likelihood of cuts from broken tubing.
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*  Citation
 J. Chem. Educ. 1996 73 851.
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Last Updated:		 September 21, 1999
February 21, 2006
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