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Exercício de Potencial-Padrão de Redução

por Vinicius (Fuvest 1998) Normal Wednesday, November 18th, 2009

Exercício:

Potencial padrão de redução:

Zn……-0,76

Fe……-0,44

Sn……-0,14

Cu……+0,34

Quer-se guardar, a 25ºC, uma solução aquosa 1 mol/L de SnCl2. Dispõe-se de recipientes de
I. ferro
II. ferro galvanizado (ferro revestido de Zn)
III. lata comum (ferro revestido de Sn)
IV. cobre
Examinando-se a tabela dos potenciais padrão de redução apresentada acima, conclui-se que essa solução de SnCl
2 pode ser guardada sem reagir com o material do recipiente, apenas em

Informações Adicionais:

a)IV
b)I e II
c)III e IV
d)I, II e III
e)I, II e IV

R=C

Mas não ira reagir com o cobre?Desde já grato.


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