VISUAL DEMONSTRATION OF THE IONIC STRENGTH EFFECT IN THE CLASSROOM. THE DEBYE-HUCKEL LIMITING LAW

dc.creatorSabadini, E
dc.creatorCarvalho, LVC
dc.date2013
dc.date2014-08-01T18:16:53Z
dc.date2015-11-26T16:58:57Z
dc.date2014-08-01T18:16:53Z
dc.date2015-11-26T16:58:57Z
dc.date.accessioned2018-03-28T23:46:38Z
dc.date.available2018-03-28T23:46:38Z
dc.identifierQuimica Nova. Soc Brasileira Quimica, v. 36, n. 1, n. 187, n. 189, 2013.
dc.identifier0100-4042
dc.identifierWOS:000314985500031
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/76574
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/76574
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1278068
dc.descriptionThe effects of ionic strength on ions in aqueous solutions are quite relevant, especially for biochemical systems, in which proteins and amino acids are involved. The teaching of this topic and more specifically, the Debye-Huckel limiting law, is central in chemistry undergraduate courses. In this work, we present a description of an experimental procedure based on the color change of aqueous solutions of bromocresol green (BCG), driven by addition of electrolyte. The contribution of charge product (z(+)vertical bar z(-)vertical bar) to the Debye-Huckel limiting law is demonstrated when the effects of NaCl and Na2SO4 on the color of BCG solutions are compared.
dc.description36
dc.description1
dc.description187
dc.description189
dc.languageen
dc.publisherSoc Brasileira Quimica
dc.publisherSao Paulo
dc.publisherBrasil
dc.relationQuimica Nova
dc.relationQuim. Nova
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectcolor change
dc.subjectionic strength effect
dc.subjectvisualization of the Debye-Huckel law
dc.titleVISUAL DEMONSTRATION OF THE IONIC STRENGTH EFFECT IN THE CLASSROOM. THE DEBYE-HUCKEL LIMITING LAW
dc.typeArtículos de revistas


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