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A mixture of ferrous oxide and ferric oxide is reacted with kmno4 solution having a concentration 2 / 5 M, 100 ml of which was used, the solution was then titrated with zinc dust which converted Fe3+ of the solution to Fe2 + . The Fe2+ required 1000 ml of 2 by 15 M potassium dichromate solution. Find the percent by mole of ferrous oxide and ferric oxide.

A mixture of ferrous oxide and ferric oxide is reacted with kmno4 solution having a concentration 2 / 5 M, 100 ml of which was used, the solution was then titrated with zinc dust which converted Fe3+ of the solution to Fe2 +  . The Fe2+ required 1000 ml of 2 by 15 M potassium dichromate solution. Find the percent by mole of ferrous oxide and ferric oxide.

Grade:11

1 Answers

Arun
25750 Points
3 years ago
molarmass ))= 6.92%3 * O2mass % of FeO = (moles of FeO * mass of FeO) / ((moles of FeO * mass of FeO) + (moles of Fe572-1692_Capture 8th.PNG

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