Acid-base indicators produced with low cost materials for use in Chemistry Teaching

Detalhes bibliográficos
Autor(a) principal: Firmino, Eduardo da Silva
Data de Publicação: 2019
Outros Autores: Araújo, Virna Pereira de, Sampaio, Caroline de Goes, Vasconcelos, Ana Karine Portela, Barroso, Maria Cleide da Silva
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/1257
Resumo: Several everyday materials have acid-base indicator properties. This article aims to develop a reference material on acid-base indicators made from these materials, which can be used by the professor of Chemistry in the content of Acids and Bases to carry out the identification of these, and in this way, to be able to contextualize their teaching with the daily life of the students, who often associate the contents of Chemistry with something difficult to understand and without applications in everyday life. A total of 10 substances (purple grape, açaí, black olives, purple cabbage, black beans, jasmine-mango flower, minilacre flower, hibiscus flower, purple onion and eggplant) were selected for the preparation of the extracts, which were made using ethyl alcohol, found in pharmacies and markets, for a period of 24 hours. The extracts were tested on four substances: commercial muriatic acid, commercial caustic soda, vinegar and soap. All the indicators present satisfactory results, being able to identify with acid and basic substances distinction, which allows to infer that they can be used as a teaching tool by the professor of Chemistry.
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spelling Acid-base indicators produced with low cost materials for use in Chemistry TeachingIndicadores ácido-base producidos con materiales de bajo costo para uso en la Enseñanza de la QuímicaIndicadores ácido-base produzidos com materiais de baixo custo para uso no Ensino de QuímicaChemistry TeachingAcid-base indicatorsLow cost materialExperimentation.Enseñanza de la QuímicaIndicador ácido-baseMaterial de bajo costoExperimentación.Ensino de QuímicaIndicador ácido-baseMaterial de baixo custoExperimentação.Several everyday materials have acid-base indicator properties. This article aims to develop a reference material on acid-base indicators made from these materials, which can be used by the professor of Chemistry in the content of Acids and Bases to carry out the identification of these, and in this way, to be able to contextualize their teaching with the daily life of the students, who often associate the contents of Chemistry with something difficult to understand and without applications in everyday life. A total of 10 substances (purple grape, açaí, black olives, purple cabbage, black beans, jasmine-mango flower, minilacre flower, hibiscus flower, purple onion and eggplant) were selected for the preparation of the extracts, which were made using ethyl alcohol, found in pharmacies and markets, for a period of 24 hours. The extracts were tested on four substances: commercial muriatic acid, commercial caustic soda, vinegar and soap. All the indicators present satisfactory results, being able to identify with acid and basic substances distinction, which allows to infer that they can be used as a teaching tool by the professor of Chemistry.Diversos materiales del cotidiano poseen propiedades indicadoras ácido-base. En este artículo se pretende desarrollar un material de consulta sobre Indicadores ácido-base hechos a partir de esos materiales, que puedan ser usados por el profesor de Química en el contenido de Ácidos y Bases para realizar la identificación de éstos, y de esa forma, poder contextualizar su enseñanza con el cotidiano de los alumnos, que muchas veces asocian los contenidos de la Química a algo de difícil comprensión y sin aplicaciones en el día a día. Se seleccionaron 10 sustancias (uva morada, açaí, aceituna negra, repollo morado, frijol negro, flor jazmín-manga, flor minilacre, flor hibisco, cebolla morada y berenjena) para la preparación de los extractos, que se hicieron utilizando alcohol etílico común, encontrado en farmacias y mercados, por un período de 24 horas. Los extractos se probaron en cuatro sustancias: ácido muriático comercial, sosa cáustica comercial, vinagre y jabón. Todos los indicadores presentan resultados satisfactorios, logrando identificar con distinción sustancias ácidas y básicas, lo que permite inferir que pueden ser usados como herramienta de enseñanza por el profesor de Química.Diversos materiais do cotidiano possuem propriedades indicadoras ácido-base. Pensando nisso, este artigo tem como objetivo desenvolver um material de consulta sobre Indicadores ácido-base feitos a partir desses materiais, que possam ser usados pelo professor de Química no conteúdo de Ácidos e Bases para realizar a identificação destes, e dessa forma, poder contextualizar seu ensino com o cotidiano dos alunos, que muitas vezes associam os conteúdos da Química a algo de difícil compreensão e sem aplicações no dia a dia. Foram selecionadas 10 substâncias (uva roxa, açaí, azeitona preta, repolho roxo, feijão preto, flor jasmim-manga, flor minilacre, flor hibisco, cebola roxa e berinjela) para a preparação dos extratos, que foram feitos utilizando álcool etílico comum, encontrado em farmácias e mercados, por um período de 24 horas. Os extratos foram testados em quatro substâncias: ácido muriático comercial, soda cáustica comercial, vinagre e sabão. Todos os indicadores apresentam resultados satisfatórios, conseguindo identificar com distinção substâncias ácidas e básicas, o que permite inferir que podem ser usados como ferramenta de ensino pelo professor de Química.Research, Society and Development2019-06-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/125710.33448/rsd-v8i8.1257Research, Society and Development; Vol. 8 No. 8; e45881257Research, Society and Development; Vol. 8 Núm. 8; e45881257Research, Society and Development; v. 8 n. 8; e458812572525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/1257/1013Copyright (c) 2019 Eduardo da Silva Firmino, Virna Pereira de Araújo, Caroline de Goes Sampaio, Ana Karine Portela Vasconcelos, Maria Cleide da Silva Barrosoinfo:eu-repo/semantics/openAccessFirmino, Eduardo da SilvaAraújo, Virna Pereira deSampaio, Caroline de GoesVasconcelos, Ana Karine PortelaBarroso, Maria Cleide da Silva2020-03-25T16:06:56Zoai:ojs.pkp.sfu.ca:article/1257Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:26:22.013617Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Acid-base indicators produced with low cost materials for use in Chemistry Teaching
Indicadores ácido-base producidos con materiales de bajo costo para uso en la Enseñanza de la Química
Indicadores ácido-base produzidos com materiais de baixo custo para uso no Ensino de Química
title Acid-base indicators produced with low cost materials for use in Chemistry Teaching
spellingShingle Acid-base indicators produced with low cost materials for use in Chemistry Teaching
Firmino, Eduardo da Silva
Chemistry Teaching
Acid-base indicators
Low cost material
Experimentation.
Enseñanza de la Química
Indicador ácido-base
Material de bajo costo
Experimentación.
Ensino de Química
Indicador ácido-base
Material de baixo custo
Experimentação.
title_short Acid-base indicators produced with low cost materials for use in Chemistry Teaching
title_full Acid-base indicators produced with low cost materials for use in Chemistry Teaching
title_fullStr Acid-base indicators produced with low cost materials for use in Chemistry Teaching
title_full_unstemmed Acid-base indicators produced with low cost materials for use in Chemistry Teaching
title_sort Acid-base indicators produced with low cost materials for use in Chemistry Teaching
author Firmino, Eduardo da Silva
author_facet Firmino, Eduardo da Silva
Araújo, Virna Pereira de
Sampaio, Caroline de Goes
Vasconcelos, Ana Karine Portela
Barroso, Maria Cleide da Silva
author_role author
author2 Araújo, Virna Pereira de
Sampaio, Caroline de Goes
Vasconcelos, Ana Karine Portela
Barroso, Maria Cleide da Silva
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Firmino, Eduardo da Silva
Araújo, Virna Pereira de
Sampaio, Caroline de Goes
Vasconcelos, Ana Karine Portela
Barroso, Maria Cleide da Silva
dc.subject.por.fl_str_mv Chemistry Teaching
Acid-base indicators
Low cost material
Experimentation.
Enseñanza de la Química
Indicador ácido-base
Material de bajo costo
Experimentación.
Ensino de Química
Indicador ácido-base
Material de baixo custo
Experimentação.
topic Chemistry Teaching
Acid-base indicators
Low cost material
Experimentation.
Enseñanza de la Química
Indicador ácido-base
Material de bajo costo
Experimentación.
Ensino de Química
Indicador ácido-base
Material de baixo custo
Experimentação.
description Several everyday materials have acid-base indicator properties. This article aims to develop a reference material on acid-base indicators made from these materials, which can be used by the professor of Chemistry in the content of Acids and Bases to carry out the identification of these, and in this way, to be able to contextualize their teaching with the daily life of the students, who often associate the contents of Chemistry with something difficult to understand and without applications in everyday life. A total of 10 substances (purple grape, açaí, black olives, purple cabbage, black beans, jasmine-mango flower, minilacre flower, hibiscus flower, purple onion and eggplant) were selected for the preparation of the extracts, which were made using ethyl alcohol, found in pharmacies and markets, for a period of 24 hours. The extracts were tested on four substances: commercial muriatic acid, commercial caustic soda, vinegar and soap. All the indicators present satisfactory results, being able to identify with acid and basic substances distinction, which allows to infer that they can be used as a teaching tool by the professor of Chemistry.
publishDate 2019
dc.date.none.fl_str_mv 2019-06-08
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/1257
10.33448/rsd-v8i8.1257
url https://rsdjournal.org/index.php/rsd/article/view/1257
identifier_str_mv 10.33448/rsd-v8i8.1257
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/1257/1013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 8 No. 8; e45881257
Research, Society and Development; Vol. 8 Núm. 8; e45881257
Research, Society and Development; v. 8 n. 8; e45881257
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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