Small-Scale and Low-Cost Electrodes for "Standard" Reduction Potential Measurements

Truls Grønneberg
Department of Chemistry, University of Oslo, 0315 Oslo, Norway
Per-Odd Eggen and Lise Kvittingen
Department of Chemistry, Norwegian University of Science and Technology, 7491 Trondheim, Norway
J. Chem. Educ., 2007, 84 (4), p 671
DOI: 10.1021/ed084p671
Publication Date (Web): April 1, 2007

Abstract

This article describes how to construct three simple and inexpensive electrodes: a hydrogen, a chlorine, and a copper electrode. The copper electrode is applied as a reference electrode for the reduction potential measurements and is calibrated against the "standard" hydrogen electrode. These small-scale (microchemistry) electrodes can be used in secondary school courses as well as a first-year course at college or university.

Keywords (Audience):

First-Year Undergraduate / General

Keywords (Domain):

Laboratory Instruction

Keywords (Feature):

Cost-Effective Teacher

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Electrochemistry
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  • Received: August 03, 2009

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