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Como preparar uma solução de 2% de sulfato de sódio?

2016-05-25View Original

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Como preparar uma solução de 2% de sulfato de sódio?
Reply #22016-05-25
2% de sulfato de sódio deve ser em termos de proporção de massa, certo? Basta dissolver dois gramas de sulfato de sódio em 98 mililitros de água. Deve ser assim!

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