Problem: What mass (in grams) of iron(III) oxide contains 58.8 g of iron? Iron(III) oxide is 69.94 % iron by mass.

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The mass of iron (III) oxide can be determined using the calculation below:

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What mass (in grams) of iron(III) oxide contains 58.8 g of iron? Iron(III) oxide is 69.94 % iron by mass.

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