lharmon2012 lharmon2012
  • 30-07-2016
  • Chemistry
contestada

If 11.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?

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Willchemistry
Willchemistry Willchemistry
  • 30-07-2016
Molar mass MgSO₄.7 H₂O = 246.52 g/mol

number of moles :

11.0 / 246.52 => 0.0446 moles

Molar mass MgSO
₄ = 120.4 g/mol

Mass of anhydrous magnesium sulfate :

( 0.0446 x 120.4 ) => 5.36984 g

hope this helps!
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