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2002
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August
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In the Laboratory
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Rate Law Determination of Everyday Processes
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Michael J. Sanger, Russell A. Wiley Jr., and Erwin W. Richter
Department of Chemistry, University of Northern Iowa, Cedar Falls, IA 50614-0423
Amy J. Phelps
Department of Chemistry, Middle Tennessee State University, Murfreesboro, TN 37132
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August 2002
Vol. 79 No. 8
p. 989
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| Abstract |
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In this experiment, students determined whether burning a birthday candle and flipping pennies are consistent with zero-, first-, or second-order rate laws. Students collected time-dependent data for the candle's mass or the number of pennies remaining (amount) and plotted curves of amount versus time, ln(amount) versus time, and amount−1 versus time. The linear plot of mass versus time indicates the candle experiment is consistent with a zero-order rate law, while the linear plot of ln(pennies) versus time indicates the penny experiment is consistent with a first-order rate law. Numerical values for the rate constants were determined from the slopes of the linear plots.
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| Supplement |
Instructions for students and notes to the instructor are available.
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 Contents |
MS Word document
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| More Information |
Citation |
Sanger, Michael J.; Wiley, Russell A., Jr.; Richter, Erwin W.; Phelps, Amy J. J. Chem. Educ. 2002 79 989.
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Keywords |
General Chemistry; Introductory / High School Chemistry; Kinetics; Laboratory Instruction
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History |
Created:
Last Updated: |
July 23, 2002
March 16, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
2002
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August
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