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  Home > JCE Print > Journal of Chemical Education > Issues > 2003  > July  >
In the Laboratory
Decomposition Kinetics of Hydrogen Peroxide: Novel Lab Experiments Employing Computer Technology
Dorota A. Abramovitch, Latrice K. Cunningham, and Mitchell R. Litwer
Division of Mathematics and Sciences, Anderson College, Anderson, SC 29621
Cover
July 2003
Vol. 80 No. 7
p. 790
Abstract
The quantitative catalytic decomposition of hydrogen peroxide has been used in many general chemistry experiments. The typical procedure involves measuring the volume of oxygen generated in the reaction under constant pressure using a displacement method and calculating the necessary data. A pressure sensor interfaced with a computer using LabWorks II software allowed us to modify this reaction and to measure the change in pressure, at constant volume. Since the software allows the collection and display of real-time data and the ability to import the data to Excel, we re-examined the kinetics of this reaction. Using different concentrations of hydrogen peroxide and catalase enzyme and graphing initial concentrations versus initial rates, we determined the rate and the order of the decomposition.
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*  Citation
 Abramovitch, Dorota A.; Cunningham, Latrice K.; Litwer, Mitchell R. J. Chem. Educ. 2003 80 790.
*  Keywords
 Gases; Kinetics; Laboratory Computing / Interfacing; Laboratory Instruction; General Chemistry
*  History
 Created:
Last Updated:		 June 4, 2003
February 28, 2005
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