Reações ácido-base: conceito, representação e generalização a partir das energias envolvidas nas transformações


Autoria(s): Pastre, Iêda Aparecida; Plicas, Lídia Maria de Almeida; Tiera, Vera Aparecida de Oliveira; Custódio, Juliana Vieira; Agostinho, Silvia Maria Leite
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

04/11/2013

04/11/2013

2012

Resumo

Undergraduate students on the first year of Chemistry Courses are unfamiliar with the representation of acid-base reactions using the ionic equation H+ + OH- → H2O. A chemistry class was proposed about acid-base reactions using theory and experimental evaluation of neutralization heat to discuss the energy involved when water is formed from H+ and OH- ions. The experiment is suggested using different strong acids and strong base pairs. The presentation of the theme within a chemistry class for high school teachers increased the number of individuals that saw the acid-base reaction from this perspective.

Identificador

Quím. Nova,v.35,n.10,p.2072-2075,2012

0100-4042

http://www.producao.usp.br/handle/BDPI/38617

10.1590/S0100-40422012001000031

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012001000031&lng=en&nrm=iso&tlng=en

http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0100-40422012001000031&lng=en&nrm=iso&tlng=en

http://www.scielo.br/scielo.php?script=sci_pdf&pid=S0100-40422012001000031&lng=en&nrm=iso&tlng=en

Idioma(s)

por

Publicador

Sociedade Brasileira de Química

Relação

Química Nova

Direitos

openAccess

Palavras-Chave #acid-base reactions #neutralization heat #ionic equation
Tipo

article

original article