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
Data(s)

01/01/2012

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.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012001000031

Idioma(s)

pt

Publicador

Sociedade Brasileira de Química

Fonte

Química Nova v.35 n.10 2012

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

journal article