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Using a solution that is prepared by dissolving .702g of Fe(NH₄)₂(SO₄)₂·6H₂O in 50mL of H₂O having 1 mL of concentrated sulphuric acid. Now just transfer this solution completely to a flask of 1L volumetric and dilute to exactly 1 liter and then compute the Fe₂₊ ion concentration.

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Category:- Chemistry
Reference No.:- M9371860

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