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mesdevoir1
@mesdevoir1
January 2021
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a laide l exo 6 question 2 et 3 mercii d avance
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MonsieurFirdown
Verified answer
Bonjour
♧3.
● On a :
...
--> M = 12×8 + 10 + 14×4 + 16×2 = 198 g/mol
--> m = 16,5 g
● D'ou :
● Conclusion :
Voilà ^^
1 votes
Thanks 1
mesdevoir1
merci mais g une questions
mesdevoir1
on a pas utiliser 22 est ce normal
MonsieurFirdown
Oui pour la 3 ème question car on s'intéresse de la phrase en dessous
mesdevoir1
et c quoi la réponse à la phrase en dessou
mesdevoir1
et pour la question une g recalculer et g trouver 194 au lieu de 198
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Verified answer
Bonjour♧3.
● On a : ...
--> M = 12×8 + 10 + 14×4 + 16×2 = 198 g/mol
--> m = 16,5 g
● D'ou :
● Conclusion :
Voilà ^^