Purpose Designed Reaction Chambers as a Tool for Improving the Efficiency of Demonstration Experiments

TCE

The Chemical Educator

ISSN: 1430-4171 (electronic version)

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Abstract Volume 10 Issue 4 (2005) pp 265-268

Purpose Designed Reaction Chambers as a Tool for Improving the Efficiency of Demonstration Experiments

Vladimir M. Petruševski and Metodija Ž. Najdoski

Department of Chemistry, Faculty of Natural Sciences and Mathematics, University Sts. Cyril and Methodius, Arhimedova 5, 1000 Skopje, Macedonia, vladop@iunona.pmf.ukim.edu.mk
Received August 17, 2004. Accepted February 4, 2005.

Published online: 29 June 2005

Abstract. Chemical demonstrations are very often performed in closed vessels of limited volume. This, of course, affects the duration of the demonstration. Flow chambers may be used instead, allowing for a significant increase in the time of the demonstration. Several attractive experiments (ranging from very simple to more complex) are described in this paper and are offered as either new or improved lecture demonstrations for both first-year students of chemistry and chemistry majors.

Key Words: Laboratories and Demonstrations; general chemistry; nitric acid; copper; oxides of nitrogen; passivation

(*) Corresponding author. (E-mail: vladop@iunona.pmf.ukim.edu.mk)

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