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how many moles of kmno⁴ are required to oxidise 2moles of fec²o⁴ in acidic medium. Plz also tell about the n factor of cacl²

how many moles of kmno⁴ are required to oxidise 2moles of fec²o⁴ in acidic medium. 
Plz also tell about the n factor of cacl²

Grade:11

1 Answers

Arun
25750 Points
5 years ago
Dear student
 

KMnO4 + FeC2O4 + H ------> Mn2+  + Fe3+  +  2CO2

KMnO4  = 5 electrons

ferrous oxalate in acidic solution = 3 electrons

while reaction exchange of electrons takes place..........so

3 moles of KMnO4 = 5 moles of  FeC2O4

5 moles of  FeC2O4 = 3 moles of KMnO4

so 1 mole of FeC2O4 = 3/5 moles of KMnO4

hence 3/5 moles of KMnO4 of KMnO4 will be needed to react completely with one mole of ferrous oxalate in acidic solution.....

 

Hope it helps

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