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i am not clear with my basics.eg. 1 question like we have to find the n-factor of a compound.eg KMnO4 so my sir writes KMnO4 gives Mn with a 2+ charge in acidic medium so i do not understand what is this Mn charge 2+.is it an ion or does it represents a part of compound in which we are working.if so then does every compound gives Mn charge 2+ when KMnO4 reacts. in general my main doubt is how do they write the rigth hand product side
Dear Shashwat,Your doubt is genuine.KMnO4 greatly reduces to Mn2+And therefore, valence factor becomes = > 7 – 2 = 5.Now remember this mole concept – 2.Here we are not doing that balancing the eqns. or writing total product formed as we are not interested here to write that.Because all the moles – molarity – volume or titration problems can be solved by using valence factor here simply.So only the valency is required for metal atom to calculate the valence factor..And the main formulae to calculate the moles is:moles x valence factor = moles x valence factor.U need to understand this.
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