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dc.contributor.author
Alonso, Manuel  
dc.contributor.author
Chapela, Sebastián P.  
dc.contributor.author
Cristaldo, María L.  
dc.contributor.author
Nievas, Inés  
dc.contributor.author
Burgos Oliver Gamondi, Hilda I.  
dc.contributor.author
Stella, Carlos Alberto  
dc.date.available
2017-04-17T15:30:20Z  
dc.date.issued
2010-09  
dc.identifier.citation
Alonso, Manuel; Chapela, Sebastián P.; Cristaldo, María L.; Nievas, Inés; Burgos Oliver Gamondi, Hilda I.; et al.; Determination of the pKa value of phenolphthalein by means of absorbance measurements; Scientific Research; Creative Education; 1; 2; 9-2010; 130-133  
dc.identifier.issn
2151-4755  
dc.identifier.uri
http://hdl.handle.net/11336/15288  
dc.description.abstract
We here report a laboratory protocol for the determination of the pKa value of an acid by means of determinations obtained with a spectrophotometer. Students determine the acidity constant (Ka) and the pKa associated with phenolphthalein from the absorbance values obtained from phenolphthalein solutions at different pHs. The present protocol for the determination of the pKa takes a very short time and is useful when teaching in conditions with limited equipment.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Scientific Research  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/  
dc.subject
Medical Science Teaching  
dc.subject.classification
Métodos de Investigación en Bioquímica  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Determination of the pKa value of phenolphthalein by means of absorbance measurements  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-04-07T14:27:42Z  
dc.identifier.eissn
2151-4755  
dc.journal.volume
1  
dc.journal.number
2  
dc.journal.pagination
130-133  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Delaware  
dc.description.fil
Fil: Alonso, Manuel. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Bioquímica Humana; Argentina  
dc.description.fil
Fil: Chapela, Sebastián P.. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Bioquímica Humana; Argentina  
dc.description.fil
Fil: Cristaldo, María L.. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Bioquímica Humana; Argentina  
dc.description.fil
Fil: Nievas, Inés. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Bioquímica Humana; Argentina  
dc.description.fil
Fil: Burgos Oliver Gamondi, Hilda I.. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Bioquímica Humana; Argentina  
dc.description.fil
Fil: Stella, Carlos Alberto. Universidad de Buenos Aires. Facultad de Medicina. Departamento de Bioquímica Humana; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.journal.title
Creative Education  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.4236/ce.2010.12020  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.scirp.org/(S(i43dyn45teexjx455qlt3d2q))/journal/PaperInformation.aspx?PaperID=3018