The iron in a 6.655-g sample containing some Fe 2O3 is reduced to Fe2+. The Fe2+ is titrated with 15.67 mL of 0.1517M K2Cr2O7 in an acid solution.
6Fe2+ + Cr2O72- + 14H+ → 6Fe3+ + 2Cr3+ + 7H2O(l)
Find the mass of Fe.
Find the percentage of Fe.
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Mass Percent concept. You can view video lessons to learn Mass Percent. Or if you need more Mass Percent practice, you can also practice Mass Percent practice problems.