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
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.
CEJ Vol.11, No.2, Contents