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Anagoes2011
@Anagoes2011
January 2020
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Qual a massa em gramas de 4.10^22 átomos de magnésio?
Dados: massa molar do mg=24 g/mol
Constante de Avogadro: 6.10^23 mol -1
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WillQuimica
Verified answer
24 g Mg --------------- 6.10²³ átomos
x g Mg ---------------- 4.10²² átomos
x = 24.(4.10²²) / 6.10²³
x = 9,6.10²³ / 6.10²³
x = 1,6 g de Mg
espero ter ajudado!
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Verified answer
24 g Mg --------------- 6.10²³ átomosx g Mg ---------------- 4.10²² átomos
x = 24.(4.10²²) / 6.10²³
x = 9,6.10²³ / 6.10²³
x = 1,6 g de Mg
espero ter ajudado!