Gen chem achiever Question

[utdent20]

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What % of iron present in the ore, if a 1.120g sample requires 25.0 mL of .050 M KMnO4 to fully oxidize all the dissovled Fe 2+?
8H+ + 5 Fe2+ + MnO4- --->5 Fe3+ +Mn2+ + 4H20


How do you even get started on it. ? I will put the answer once i can figure it out myself.

 

[doc toothache]

What % of iron present in the ore, if a 1.120g sample requires 25.0 mL of .050 M KMnO4 to fully oxidize all the dissovled Fe 2+?
8H+ + 5 Fe2+ + MnO4- --->5 Fe3+ +Mn2+ + 4H20


How do you even get started on it. ? I will put the answer once i can figure it out myself.

ml x N = g/eq. weight; this should get you started.