GwLolEpifS4ung GwLolEpifS4ung
  • 21-11-2016
  • Chemistry
contestada

What is the mass of 8.90 moles of magnesium chloride, MgCl2?

Express your answer numerically in grams.

Respuesta :

Ambergal Ambergal
  • 21-11-2016
mass = mol x Mr
= 8.90 x (24.3 + (2)(35.5))
= 848.17g
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Аноним Аноним
  • 21-11-2016
Moles= weight of the given compound /molecular mass of that compound. Therefore Weight of MgCl2= moles of MgCl2 x molecular mass of MgCl2 = 8.90 moles x (molecular weight of Mg+ 2 x molecular weight of Cl) = 8.90 x (24 + 2x 35.5) ~ 845. 5gm.
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