Chemistry

Problem

Calculate x in the formula FeSO₄·xH₂O from the following data: 12.18 g of iron (II) sulphate crystals were made up to 500 cm³ acidified with sulphuric acid. 25.0 cm³ of this solution required 43.85 cm³ of 0.01 mol dm⁻³ KMnO₄ for complete oxidation.

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