camblam9230 camblam9230
  • 24-02-2018
  • Chemistry
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What is the molecular formula for a compound with the empirical formula cacl2 and a molar mass of 330g quizzez?

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superman1987
superman1987 superman1987
  • 05-03-2018
The empirical formula is CaCl2, which means Ca= x & Cl= 2x & where the molecular weight is 330 g 
So x(Ca) + 2x(Cl) = 330 and when the molecular weight of Ca=40 & the molecular weight of Cl = 35
∴ x(40) + 2x (35) =330
   40 x + 70 x = 330
   110 x = 330
    x= 330/110 = 3
∴ the molecular formula is Ca3Cl6
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