JCE Online Journal of Chemical Education
 | Subscriptions  | Software Orders  | Support  | Contributors  | Advertisers  | 

JCE Print
   Current Issue
 Previous Issues
 Supplements
 Search JCE Index

JCE Digital Library
   DigiDemos
 QBank
 SymMath
 WebWare

JCE Software
   Latest Releases
 Software & Video
 Downloads
 Support

Only@JCE Online
   JCE Online Store
 JCE HS CLIC
 JCE Discussion Forums
   Biographical Snapshots
 ChemEd Resource Shelf
 Featured Molecules
 Hal's Picks
 Project Chemlab
 Reviewed WWW Sites
 "Web-Ed" Articles

About JCE
   Features
 Publications
 Operations
 Outreach
 Contact Us


  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > September  >
In the Laboratory
Chemical Principles Revisited
Determination of the Universal Gas Constant, R. A Discovery Laboratory
David B. Moss
Moses Brown School, Providence, RI 02906

Kathleen Cornely
Department of Chemistry, Providence College, Providence, RI 02918-0001
Cover
September 2001
Vol. 78 No. 9
p. 1260
Abstract
This experiment combines published procedures for the generation of three gases (hydrogen, nitrogen, and oxygen) and adapts them so that they can be used with a single gas-generation and collection apparatus. Working in collaborative groups, students determine density and number density for each gas. By comparing values for these two quantities in a post-lab discussion, students "discover" Avogadro's assertion that equal volumes contain equal numbers of particles and demonstrate that R has a single value for all three gases under consideration and so is truly a universal constant.
Supplement
Instructions for students and notes for the instructor are available.
*  Contents JCE2001p1260W.wpd (Word Perfect); JCE2001p1260W.xls (MS Excel)
*  Download
JCE2001p1260W.pdf

JCE2001p1260W.zip

JCE2001p1260W.sit
More Information
*  Citation
 Moss, David B.; Cornely, Kathleen. J. Chem. Educ. 2001 78 1260.
*  Keywords
 Collaborative / Cooperative Learning; Laboratory Instruction; Gases; General Chemistry; Inquiry-Based / Discovery Method; Introductory / High School Chemistry
*  History
 Created:
Last Updated:		 August 14, 2001
August 31, 2005
<< Previous Article Table of Contents Next Article >>
  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > September  > Page 1260


Subscriptions
 Subscription Info
 Order Forms

JCE HS CLIC

Our Secondary School editors work hard to distill all the JCE materials to produce a fraction of particular interest to high school teachers. We call it CLIC.
 JCE HS CLIC

Contributions Welcome
JCE welcomes your submission
 Contributors' Corner

Advertisers
In recent years we have worked hard to better match our advertisers with our readers. When shopping for chemistry education materials, visit our advertisers' WWW sites first.
 Recent Advertisers

Be An Ambassador
Take JCE along on your outreach missions. Copies of the Journal, guest access to JCE Online, our publications catalog, and more are available for your participants.
 Outreach with JCE

Comments to
jceonline@chem.wisc.edu		 Copyright © Division of Chemical Education, Inc., American Chemical Society.
All rights reserved.