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  Home > JCE Print > Journal of Chemical Education > Issues > 2007  > October  >
In the Classroom
JCE DigiDemos: Tested Demonstrations
A Fast Coulometric Estimation of Avogadro's Number
Nicholas C. Thomas
Department of Chemistry, Auburn University at Montgomery, Montgomery, AL 36124-4023

checked by Carole Bennett
Stickles High School, Tampa, FL 33604-1112

Cover
October 2007
Vol. 84 No. 10
p. 1667

Abstract
Using simple materials found in any high school or college laboratory, an electrochemical method of determining Avogadro's number is presented. Once set up, the measurement can be completed in about 5 minutes.
More Information
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Citation
Thomas, Nicholas C. J. Chem. Educ. 2007, 84, 1667.
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Keywords
Demonstrations; Electrochemistry; First-Year Undergraduate / General; Gases; Hands-On Learning / Manipulatives; High School / Introductory Chemistry; Physical Chemistry
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History
Created:
Last Updated:
8/20/2007
9/7/2007
 Caution! 
Experiments, laboratory exercises, lecture demonstrations, and other descriptions of the use of chemicals, apparatus, instruments, computers, and computer interfaces are presented in the Journal of Chemical Education as illustrative of new or improved ideas or concepts in chemistry instruction and are directed at qualified teachers. Although every effort is made to assure and encourage safe practices and safe use of chemicals, the Journal of Chemical Education cannot assume responsibility for uses made of its published materials. Many chemicals are hazardous. Precautions for the safe use of hazardous chemicals and directions for their proper disposal are described in the Material Safety Data Sheets and on the labels. We strongly urge all those planning to use materials from our pages to make choices and to develop procedures for laboratory and classroom safety in accordance with local needs and situations.
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