A solution was prepared by dissolving 30g of a mixture of Iron(II) salt and Iron (III)salt in 1dm3 of a solution. A volume of 25cm3 of this solution was taken, acidified and reacted with 0.1M KMnO4 solution. Calculate the percentage of Iron(III)in the mixture if 24cm3 of the KMnO4 solution reacted.

Answer 1

I don't know

Answer 2

10.4 g