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Example Question - 2

Fe2O3(s) + 3CO(g) → 3CO2(g) + 2Fe(s)
Calculate the mass of iron produced from 1000 tonnes of Fe2O3.mass of Fe2O3 = 1 × 109gmoles of Fe2O3 = 1 × 109 ÷ 160(Mr)moles of Fe2O3 = 6,250,000 molmoles of Fe= 2 × moles of Fe2O3moles of Fe= 12,500,000 molmass of Fe= 698750000 g = 698.75 tonnes

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Specification: AQA Chemistry (7404), AS-level, 3.1.2.2 The mole and the Avogadro constant and 3.1.2.4 Empirical and molecular formula. Topic: Amount of Substance.

Key terms in this lesson

Mole
The amount of substance that contains as many particles as there are atoms in exactly 12g of carbon-12.

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