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15-12-2022
Chemistry

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3.
10.0g of iron (II) ammonium sulphate crystals were made up to 250cm' of acidified
aqueous solution. 25.0cm' of this solution required 21.25cm' of 0.0200 mol dm
potassium dichromate (VI) for oxidization.
Calculate x in the formula FeSO, (NH,),SO4.XH,O

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