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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > February  >
In the Laboratory
Small-Scale Kinetic Study of the Catalyzed Decomposition of Hydrogen Peroxide
Ronald O. Ragsdale, Jan C. Vanderhooft , and Arden P. Zipp
University of Utah, Department of Chemistry, Salt Lake City, UT 84112
Cover
February 1998
Vol. 75 No. 2
p. 215
Abstract
The rate of decomposition of hydrogen peroxide with pyrolusite as a catalyst was studied directly by following the formation of oxygen bubbles. The apparatus consisted of a barrel from a 2-ml Beral pipet inserted over a micropipet tip which was fitted into a one-hole stopper. The stopper assembly was placed in a 20-mL glass bottle reaction vessel. The hydrogen peroxide can be obtained from the super market and the catalyst, a piece of pyrolusite, can be recycled. The reaction order was found to be 1.1 + 0.2 by 240 pairs of students. The activation energy was 35 + 14 kJ. Reproducible data have also been obtained with the minerals, psilomelane, maganite, and groutite as catalysts.
More Information
*  Citation
 Ragsdale, Ronald O.; Vanderhooft , Jan C.; Zipp, Arden P. J. Chem. Educ. 1998 75 215.
*  Keywords
 Inorganic Chemistry, Laboratory Instruction, Catalysis, Kinetics, Laboratory Instruction, and Microscale
*  History
 Created:
Last Updated:		 June 28, 1999
June 24, 2005
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  Home > JCE Print > Journal of Chemical Education > Issues > 1998 > February > Page 215


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