1. Determine the correct Ecell for each reaction.
2. Give one possible reason why the two Ecell are not the same.
3. What the unknown metal and justify your answer.
4. Draw the electrochemical cell with all appropriate information for the copper concentrated cell (Hint you need to do Nernst Equ.)
5. Draw the electrochemical cell with all appropriate information for the lead concentrated cell (Hint you need to do Nernst Equ.).
a. Use the cell potential for Pb-PbI2 cell and the known [Pb2+] in equilibrium with PbI2
b. Use the original dilute [Pb2+] and [I1-] to calculate the [I1-] in solution.
c. Using your data to calculate the Ksp of PbI2.
d. The accepted value of the Ksp of PbI2 is 9.8E-9. How does your experimental results compared to the accepted value.