Question

If an iron company needs to make 61 tons of iron, how many tons of hematite must react?

Answer 1

Answer on question #58805 - Chemistry - Inorganic Chemistry

Question:

If an iron company needs to make 61 tons of iron, how many tons of hematite must react?

Solution:

The iron can be obtained by reactions:

$$\begin{array}{l} \mathrm{Fe_2O_3} + 3\mathrm{H_2} = 2\mathrm{Fe} + 3\mathrm{H_2O} \\ \mathrm{Fe_2O_3} + 3\mathrm{CO} = 2\mathrm{Fe} + 3\mathrm{CO_2} \end{array}$$

If an iron company needs to make 61 tons of iron, than mass of hematite is:

$$m(\mathrm{Fe_2O_3}) = (160\ \mathrm{g/mol} \times 61\ \mathrm{ton}) / 112\ \mathrm{g/mol} = 87.14\ \mathrm{ton}$$

Answer: An iron company needs 87.14 ton of hematite.

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