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harissonb
@harissonb
July 2022
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Quantos mols de chumbo (Pb) existem em 517,5 g de chumbo?
Dado: Pb = 207 u
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WillQuimica
Verified answer
Nº de mols = massa em gramas / massa molar
n = 517,5 / 207
n = 2,5 mols
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Verified answer
Nº de mols = massa em gramas / massa molarn = 517,5 / 207
n = 2,5 mols