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Chemistry, 10.04.2021 15:20 jessejames48

Os íons fluoreto são adicionados à água potável na concentração de 1 ppm. Sabe-se que concentrações entre 5 ppm e 10 ppm causam manchas nos dentes e, acima de 50 ppm, o íons fluoretos são tóxicos. Em uma estação de tratamento de água, um técnico adicionou 400g de íons fluoreto, na forma de fluoreto de sódio, em um tanque contendo 80.000 litros de água. Analisando essas informações, podemos concluir que essa fluoração: a) Não provocará manchas nos dentes e não será tóxica. b) Não provocará manchas nos dentes e será 10 vezes mais tóxica. c) Não provocará manchas nos dentes e será tóxica. d) Provocará manchas nos dentes e não será tóxica. e) Provocará manchas nos dentes e será tóxica.

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Os íons fluoreto são adicionados à água potável na concentração de 1 ppm. Sabe-se que concentrações...
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