Just need some help with calculating the cell potential. Draw and completely lab

Question

Just need some help with calculating the cell potential. Draw and completely label a Ni/Ni concentration cell that contains .0010 M Ni2+ and 1.00 M Ni2+. Be sure to include the concentrations in each half cell, label anode and cathode, indicate flow of electrons. 2) Calculate the cell potential at 298K 3) Calculate the cell potential at 350 K 4) What is the equilibrium constant, K for this reaction? I already drew out the diagram. Just am having trouble with how to find out the standard cell potential. I used .0592V/n Log(1/.001) and got .0888 V. Not sure if thats the correct way to do it.

Explanation / Answer

For concentration cell,

Eo = 0 V

So,

2) E = -0.0592 logQ at 298 K

Q = [low conc.]/[high conc.]

E = -0.0592/2 (log(0.001/1)) = 0.0888 V

3) At T = 350 K

E = -8.314 x 350/96485 x 2 (ln(0.001/1) = 0.1042 V

4) Equilibrium constant K

nFEo = RTlnK

So,

K = 0

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