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  Home > JCE Print > Journal of Chemical Education > Issues > 2007  > February  >
In the Laboratory
Cost-Effective Teacher
A Novel W-Tube for Microscale Experiments in Chemistry
H. O. Gupta
Department of Education in Science and Mathematics, National Council of Educational Research and Training, New Delhi 110016, India
Cover
February 2007
Vol. 84 No. 2
p. 321

Abstract
There are some experiments in chemistry where there is a need to test for the presence or absence of a certain gas. The experimental setup for these tests requires appreciable quantities of chemicals, time, and specialized apparatus. A simple W-tube is described to perform these tests quickly and economically at the microscale level.
More Information
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Citation
Gupta, H. O. J. Chem. Educ. 2007, 84, 321.
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Keywords
Hands-On Learning / Manipulatives; High School / Introductory Chemistry; Laboratory Equipment / Apparatus
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History
Created:
Last Updated:
1/9/2007
2/23/2007
 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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