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Type: Artigo de periódico
Title: A Multi Purpose Experiment For General Chemistry Laboratory [um Experimento Com Propostas Múltiplas Para Um Laboratório De Química Geral]
Author: De Alencar Simoni D.
De Andrade J.C.
Gregorio Faigle J.F.
De Alencar Simoni J.
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.
Citation: Quimica Nova. , v. 25, n. 6 A, p. 1034 - 1039, 2002.
Rights: aberto
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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