Chemical Education Journal (CEJ), Vol. 11, No. 2 /Registration No. 11-9 /Received February 25, 2008. URL = http://chem.sci.utsunomiya-u.ac.jp/cejrnlE.html


New Inexpensive Apparatus for Electrolysis

Muhamad Hugerata,b

a The Academic Arab College for Education
22 Hachashmal St., P.O. Box 8349
Haifa 33145,
Israel
muha4macam.ac.il

b Institute for Science Education and Science Communication
Columbia College Chicago
624 South Michigan Avenue
Chicago, Illinois 60605 1996
USA

 

Abstract

In this lab demonstration, an integrative chemical phenomenon is demonstrated by means of electrolysis of salty water solutions. In these experiments, the students can observe directly the cathodic and anodic phenomena by using an acid-base indicator in the electrolysis system, the ions produced at each electrode are identified, and collect in a small balloon the gases that are produced during the experiments, the gases produced are identified. In this article we built a different simplified version of the conventional Hoffman apparatuses for water electrolysis using disposable materials.

 

Body of the paper



CEJ Vol.11, No.2, Contents