May 2020 1 77 Report
A massa em gramas de uma molecula de água é :
dado : M H2O = 18g/mol; Cte de Avogadro = 6.10²³ mol (-1)*
a)18 g
b)6 g
c)122 g
d)6.10 (-28)* g
e)3.10(-23)* g
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