March 28, 2017

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A 25.2 g of iron ore is treated as follows. The
iron in the sample is all converted by a series
of chemical reactions to Fe2O3. The mass of
Fe2O3 is measured to be 12 grams. What was
the percent iron in the sample of ore?
Answer in units of %

  • ap chemistry - ,

    Mass Fe in sample = (12 x 2 x atomic mass Fe/molar mass Fe2O3) = ?
    %Fe = (mass Fe/mass sample)*100 = ?

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