Cont. If the potential of silver, silver ion electrode, EAg+,Ag^0 is taken to be

Question

Cont.

If the potential of silver, silver ion electrode, EAg+,Ag^0 is taken to be 0.000 V in oxidation orreduction, what is the value of the potential for the oxidationreaction, ECu, Cu2+oxid^0 ? Ecell^0=Eoxid^0+Ered^0.

_______volts

If EAg+,Ag red^0 equals 0.80 V, as instandard tables of electrode potentials, what is the value of thepotential of the oxidation reaction of copper, ECu,Cu2+oxid^0?

_________

Write the net ionic equation for the spontaneous reaction thatoccurs in the cell that the student studied.

Explanation / Answer

If EoAg+/Ag = +0.80Vthen EoCu/Cu2+ = +0.34V Cu(s) + Ag +(aq) Ag(s) + Cu2+ (aq) but the reaction is non-spontaneous reaction i.eEocell = +1.14V >0

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