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Chemistry, 27.08.2020 02:01 lovenahofer

Considere dois tubos de ensaio, cada um contendo diferentes solventes: tubo A - água (H2O) e tubo B - dissulfeto de carbono (CS2). Como são ambos incolores e suas massas são iguais, a diferença visual entre eles está no volume ocupado por cada um, sendo o volume maior no tubo A. Os seguintes experimentos (descritos nos itens a, b, c), totalmente independentes e isolados, poderiam ter sido realizados com estes tubos. Responda o que se pede, com EXPLICAÇÕES COMPLETAS. a) Imagine que em cada tubo seja adicionada a mesma massa de cristais de iodo - I2 - (de coloração roxa). Após agitação, o que deveríamos observar em relação ao sistema final no tubo A e no tubo B? b) Se o experimento descrito no item a fosse realizado com cristais de permanganato de potássio (KMnO4 - de coloração roxa), quais seriam as diferenças observadas? c) Se o conteúdo do tubo A fosse colocado no tubo B, seriam formadas quantas fases? Identifique-as (fase superior/ inferior) e explique seu raciocínio.

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Considere dois tubos de ensaio, cada um contendo diferentes solventes: tubo A - água (H2O) e tubo B...
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