Chemistry · Oct / Nov 2018 · Paper 12 · Question 30

5070The mole and the Avogadro constant

Iron can be extracted from the ore haematite, Fe2O3. What is the maximum mass of iron that could be produced from 500 kg of haematite? [Ar: O, 16; Fe, 56]

A160 kg
B240 kg
C350 kg
D420 kg

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Correct answer: C. 350 kg

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