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Type: Artigo de periódico
Title: Um experimento com propostas múltiplas para um laboratório de química geral
Title Alternative: A multi purpose experiment for general chemistry laboratory
Author: Simoni, Déborah de Alencar
Andrade, João Carlos de
Faigle, José Fernando Gregório
Simoni, José de Alencar
Abstract: This article suggests a sequence of experiments on the preparation, analysis and some photochemical aspects of potassium tris (oxalato) ferrate(III) trihydrate. The sequence of experiments could be carried out in four or five 4-hour laboratory periods. The new part of this article is related to the kinetics studies involving the ambient illumination as well as the use of the cellophane paper of different colors as light filters. The aspects such as quantum yield, light absorption and photochemical reactions are explored in order to illustrate the relationships between the exposure time, light intensity and wavelength range on the photochemical reactions.
Subject: photochemical reactions
general chemistry
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422002000600023
Date Issue: 1-Nov-2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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