If the standard cell potential of zinc-copper cell is 1.10 V and the reduction potential of Cu is 0.34 V, what is the reduction potential of Zn?
The answer is -0.76, correct?
right
To find the reduction potential of Zn, we can use the equation:
Standard cell potential = Reduction potential of cathode - Reduction potential of anode
In this case, Cu is the cathode and Zn is the anode.
Given:
Standard cell potential (Ecell) = 1.10 V
Reduction potential of Cu (Ecathode) = 0.34 V
Let's substitute the values into the equation:
1.10 V = 0.34 V - Reduction potential of Zn (Eanode)
To find the reduction potential of Zn, we rearrange the equation:
Reduction potential of Zn (Eanode) = 0.34 V - 1.10 V
Eanode = -0.76 V
So, the reduction potential of Zn is -0.76 V, not positive 0.76 V.