Question- Use tabulated half-cell potentials to calculate Delta Grxn for each of the following reactions at 25 C.
1) MnO2(s) + 4H + (aq)+Cu(s) --> Mn2+(aq)+2H2O(l)+Cu2+(aq)
I got Delta Grxn = -202618.5 J
I desire to know how this is done please illustrate all steps in detail