One of the reactions that occurs in a blast furnace, where iron ore is converted to cast iron, is fe2o3 1 3co ¡ 2fe 1 3co2 suppose that 1.64 3 103 kg of fe are obtained from a 2.62 3 103-kg sample of fe 2 o 3 . assuming that the reaction goes to completion, what is the percent purity of fe 2 o 3 in the original sample?

Answer : The percent purity of in the original sample is 89.6 %

Explanation :

The given balanced chemical reaction is:

First we have to calculate the mass of Fe.

Molar mass of Fe = 55.8 g/mole

Now we have to calculate the moles of

From the balanced chemical reaction we conclude that,

As, 2 moles of Fe produced from 1 mole of

So, of Fe produced from mole of

Now we have to calculate the mass of

Molar mass of = 159.69 g/mole

Now we have to calculate the percent purity of in the original sample.

Mass of original sample =

Therefore, the percent purity of in the original sample is 89.6 %

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