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A sample of pure tin metal is dissolved in nitric acid to produce a solution containing Sn2+.  This tin solution is  then titrated with a solution of KMnO4

a.    Complete and balance the overall redox reaction.

 

8 months ago

Answered By Kaushik S

Reduction of MnO4-: Mn is getting reduced to +2 from +7 oxidation state as permanganate is an oxidizing agent

MnO4- + 8H+ + 5e- -> Mn2+ + 4H2O 

Oxidization of Sn2+:

Sn2+ -> Sn4+ + 2e-

Net reaction after balancing both equations to take out the electrons becomes:

5Sn2+ + 2MnO4 + 16H+ -> 5Sn4+ + 2Mn2+ + 8H2O