Question

Calculate the standard electrode potential for the following reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Given that the standard electrode potentials for Zn2+/Zn and Cu2+/Cu are -0.76 V and 0.34 V respectively.

Answer 1

To calculate the standard electrode potential for the given reaction, we can use the formula:E cell  = E cathode  - E anode In this reaction, the reduction half-reaction is:Cu2+ aq  + 2e-  Cu s  with E cathode  = 0.34 VAnd the oxidation half-reaction is:Zn s   Zn2+ aq  + 2e- with E anode  = -0.76 VNow, we can plug these values into the formula:E cell  = 0.34 V -  -0.76 V  = 0.34 V + 0.76 V = 1.10 VSo, the standard electrode potential for the given reaction is 1.10 V.