QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | The Journal of Engineering and Exact Sciences |
Texto Completo: | https://periodicos.ufv.br/jcec/article/view/10004 |
Resumo: | A brief discussion on the unnecessary calculation of pH in solution was done, as the historical reasons for this need before the invention of commercial pH meter was widely diffused. An alternative approach for acid-base equilibrium evaluation was proposed, without approximation or need of application only for simple solutions. The central aspect for the new approach is the determination of equilibrium concentration of all chemical species in solution, including the strong acid or base concentration for adjusting of pH of solutions. Therefore, the proposed method allowed the calculation in a mixture, including several polyprotic systems. Two detailed examples were presented. The effective electrical charge parameter was formally defined. |
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QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATIONSecond-Year UndergraduateAqueous Solution ChemistryProblem SolvingAcids / BasesSegundo ano da GraduaçãoQuímicas de SoluçõesA brief discussion on the unnecessary calculation of pH in solution was done, as the historical reasons for this need before the invention of commercial pH meter was widely diffused. An alternative approach for acid-base equilibrium evaluation was proposed, without approximation or need of application only for simple solutions. The central aspect for the new approach is the determination of equilibrium concentration of all chemical species in solution, including the strong acid or base concentration for adjusting of pH of solutions. Therefore, the proposed method allowed the calculation in a mixture, including several polyprotic systems. Two detailed examples were presented. The effective electrical charge parameter was formally defined.Universidade Federal de Viçosa - UFV2020-06-17info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufv.br/jcec/article/view/1000410.18540/jcecvl6iss2pp0147-0151The Journal of Engineering and Exact Sciences; Vol. 6 No. 2 (2020); 0147-0151The Journal of Engineering and Exact Sciences; Vol. 6 Núm. 2 (2020); 0147-0151The Journal of Engineering and Exact Sciences; v. 6 n. 2 (2020); 0147-01512527-1075reponame:The Journal of Engineering and Exact Sciencesinstname:Universidade Federal de Viçosa (UFV)instacron:UFVenghttps://periodicos.ufv.br/jcec/article/view/10004/5692Copyright (c) 2020 The Journal of Engineering and Exact Sciencesinfo:eu-repo/semantics/openAccessde Oliveira, André Fernando2021-02-23T20:11:24Zoai:ojs.periodicos.ufv.br:article/10004Revistahttp://www.seer.ufv.br/seer/rbeq2/index.php/req2/oai2527-10752527-1075opendoar:2021-02-23T20:11:24The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV)false |
dc.title.none.fl_str_mv |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
title |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
spellingShingle |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION de Oliveira, André Fernando Second-Year Undergraduate Aqueous Solution Chemistry Problem Solving Acids / Bases Segundo ano da Graduação Químicas de Soluções |
title_short |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
title_full |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
title_fullStr |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
title_full_unstemmed |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
title_sort |
QUESTIONING THE RELEVANCE OF SOLUTION pH CALCULATION |
author |
de Oliveira, André Fernando |
author_facet |
de Oliveira, André Fernando |
author_role |
author |
dc.contributor.author.fl_str_mv |
de Oliveira, André Fernando |
dc.subject.por.fl_str_mv |
Second-Year Undergraduate Aqueous Solution Chemistry Problem Solving Acids / Bases Segundo ano da Graduação Químicas de Soluções |
topic |
Second-Year Undergraduate Aqueous Solution Chemistry Problem Solving Acids / Bases Segundo ano da Graduação Químicas de Soluções |
description |
A brief discussion on the unnecessary calculation of pH in solution was done, as the historical reasons for this need before the invention of commercial pH meter was widely diffused. An alternative approach for acid-base equilibrium evaluation was proposed, without approximation or need of application only for simple solutions. The central aspect for the new approach is the determination of equilibrium concentration of all chemical species in solution, including the strong acid or base concentration for adjusting of pH of solutions. Therefore, the proposed method allowed the calculation in a mixture, including several polyprotic systems. Two detailed examples were presented. The effective electrical charge parameter was formally defined. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06-17 |
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://periodicos.ufv.br/jcec/article/view/10004 10.18540/jcecvl6iss2pp0147-0151 |
url |
https://periodicos.ufv.br/jcec/article/view/10004 |
identifier_str_mv |
10.18540/jcecvl6iss2pp0147-0151 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufv.br/jcec/article/view/10004/5692 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 The Journal of Engineering and Exact Sciences info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 The Journal of Engineering and Exact Sciences |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
publisher.none.fl_str_mv |
Universidade Federal de Viçosa - UFV |
dc.source.none.fl_str_mv |
The Journal of Engineering and Exact Sciences; Vol. 6 No. 2 (2020); 0147-0151 The Journal of Engineering and Exact Sciences; Vol. 6 Núm. 2 (2020); 0147-0151 The Journal of Engineering and Exact Sciences; v. 6 n. 2 (2020); 0147-0151 2527-1075 reponame:The Journal of Engineering and Exact Sciences instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
instname_str |
Universidade Federal de Viçosa (UFV) |
instacron_str |
UFV |
institution |
UFV |
reponame_str |
The Journal of Engineering and Exact Sciences |
collection |
The Journal of Engineering and Exact Sciences |
repository.name.fl_str_mv |
The Journal of Engineering and Exact Sciences - Universidade Federal de Viçosa (UFV) |
repository.mail.fl_str_mv |
|
_version_ |
1808845245244243968 |