Formulate the electrochemical cell representing the reaction 2Cr +3Fe2+ --->2cr3+ 3Fe

Dear Student,

Please find below the solution to the asked query:

In an electrochemical cell the anode and the cathode [half-cells] are separated by two bars or slashes , which represent a salt bridge. The anode is placed on the left and the cathode on the right.
The formulation of the electrochemical cell representing the reaction is:
               2Cr + 3Fe2+   2Cr3+ + 3Fe

                 Cr(s)/Cr3+ // Fe2+/Fe(s)
Thus after writing the electrochemical cell representation and knowing the values of reduction and oxidation potential, the Eocell value can be obtained.

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