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3 Quantitative chemistry

3 Quantitative chemistry

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Question 76

In a blast furnace, iron(III) oxide (Fe2O3\text{Fe}_2\text{O}_3Fe2​O3​) is reduced to iron by reacting with carbon monoxide gas according to the equation:

Fe2O3+3CO→2Fe+3CO2 \text{Fe}_2\text{O}_3 + 3\text{CO} \rightarrow 2\text{Fe} + 3\text{CO}_2 Fe2​O3​+3CO→2Fe+3CO2​

Calculate the volume of carbon monoxide gas, in dm3\text{dm}^3dm3, needed to react completely with 320 kg320\text{ kg}320 kg of iron(III) oxide.

(Relative atomic masses (ArA_rAr​): O=16\text{O} = 16O=16, Fe=56\text{Fe} = 56Fe=56; the volume of one mole of gas is 24 dm324\text{ dm}^324 dm3.)

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3 Quantitative chemistry Questions

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