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Chemistry 7 Online
OpenStudy (anonymous):

1.5g of steel wire was dissolved in excess dilution of sulphuric acid and the solution was made up to 250cm3 in a standard flask. 25cm3 of this solution was pipetted into a conical flask and needed 25.45 cm3 of 0.02 mol dm-3 KMnO4 for complete oxidation. calculate the percentage of iron in the sample ?

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