9. Solving a chemistry problem

9. Solving a chemistry problem

3. For the titration of Fe2 from a sample of 0.5082 g, consisting only of FeO and Fe2O3, 45.50 ml of a 0.1525 N solution of KMnO4 are consumed. What percentage of FeO and Fe2O3 is in the sample?

Additional information:

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.