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Exercício de Mol (urgente!)
Exercício:
Um mol de um composto contém 72 g de carbono, 12 mols de átomos de hidrogênio e 12´1023 átomos de oxigênio. A partir dessas informações, assinale a afirmativa correta.
a) A fórmula molecular desse composto é igual a sua fórmula mínima.
b) O número total de átomos nesse composto é 12´1024.
c) Para se produzir um mol desse composto, a partir de seus constituintes, é necessário reagir 6 mols de átomos do elemento carbono, 12 mols do gás hidrogênio e 6 mols do gás oxigênio.
d) A massa molecular desse composto é igual a 161 g×mol–1.
e) O percentual, em massa, de carbono nesse composto é aproximadamente 73%.
eu não sei ent estou enviando pra ver se recebo o gabarito.
DEVIAM DEIXAR O GABARITO.
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