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Mboudirayan
@Mboudirayan
May 2019
1
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Salut aidez moi svp
la masse volumique du cuivre est 8,9 g/cm3 .
a/ quelle est la masse d'un centimètre cube de cuivre ?
b/ Sachant qu'un atome de cuivre a une masse de 10-puissances 22 g, quel est le nombre d'atomes contenus dans 1 cm3 de cuivre ?
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ficanas06
Verified answer
1/ c'est dans la masse volumique:
8.9g
2/
8.9 / 10⁻²² =
8.9 * 10²² atomes
1 votes
Thanks 2
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Verified answer
1/ c'est dans la masse volumique: 8.9g2/
8.9 / 10⁻²² = 8.9 * 10²² atomes