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  • 20-01-2018
  • Chemistry
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What is the mass of iron contained in 100g of an iron ore?

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Аноним Аноним
  • 20-01-2018
It depends on which iron ore it is.
The most common form is Fe2O3
Molar mass o iron =  55.85
Molar Mass of Oxygen = 16 

So mass of iron i Fe2O3  = (2*55.85)  * 100/ (2*55.85 + 3*16) = 69.9 g
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