1. A student measures the potential of a cell made up with 1 M CuSO4 in one solu

Question

1. A student measures the potential of a cell made up with 1 M CuSO4 in one solution reservoir and 1 M ZnSO4 in other. There is a metallic copper (Cu^0) electrode in the CuSO4 and a metalic zinc (Zn^0) electrode in the ZnSO4. She finds out the potential, or voltage, of the cell, E^0 cell, is 1.076V, and that the Zn electrode is negative.

a. At which electrode is oxidation occuring?

b. Write the equation for the oxidation half-reaction in this cell.

c. Write the equation for the reduction half-reaction in this cell.

d. Write the net ionic equation for the spontaneous oxidation-reduction reaction that occurs in this cell.

Explanation / Answer

a. zinc (Zn^0) electrode

b. Zn(S) ----> Zn^2+ (aq) + 2e-

c. Cu^2+(aq) + 2e- ---> Cu(s)

d.

Cu^2+(aq) + 2e- ---> Cu(s)
Zn(S) ----> Zn^2+ (aq) + 2e-

-------------------------------
Cu^2+(aq) + Zn(S) ----> Zn^2+ (aq) + Cu(s)
-----------------------------------------

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.