Examlex
How many grams of iron(II) sulfide is required to make 225 g of sulfuric acid,H2SO4? The reactions involved are given below.
4 FeS + 7O2 → 2 Fe2O3 + 4 SO2
2 SO2 + O2 → 2 SO3
SO3 + H2O → H2SO4
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