1. An electric current of 1.00 ampere is passed through an aqueous solution of FeCl3. Assuming 100 percent efficiency, how long will it take to electroplate exactly 1.00 mole of iron metal?(1 faraday = 96,500 coulombs = 6.02 × 1023 electrons)

2. All of the following statements are consistent with the operation of a galvanic cell except:

3. Which of the following statements is/are true regarding the reaction above? I. Cu(s) acts as an oxidizing agent. II. H+(aq) gets reduced. III. The oxidation state of nitrogen changes from +5 to +2.

4. The oxidation state of chlorine in HClO4 is:

5. Iron nails are often electroplated (galvanized) with zinc. Which of the following is true regarding this process (E° of Zn2+ → Zn(s) = –0.76 V, E° of Fe2+ → Fe(s) = –0.44 V)?

6. Which of the following statements is/are true regarding the reaction above? I. Cu(s) acts as an oxidizing agent. II. H+(aq) gets reduced. III. The oxidation state of nitrogen changes from +5 to +2.

7. Which of the following choices best explains why the reaction represented above generates electricity in a galvanic cell?

8. A galvanic cell made of two half-cells. In one half-cell, a Zn electrode is bathed in a 1.0 M ZnSO4 solution. The other cell contains a 1 M HCl solution and a hydrogen electrode. Which of the following is true regarding the standard free energy change (ΔG°) of the cell?

9. Processes that occur at the anode include which of the following? I. Zn(s) is oxidized to Zn2+(aq). II. Zn2+(aq) is reduced to Zn(s). III. H2(g) is oxidized to H+(aq). IV. 2 H+(aq) is reduced to H2(g).

10. Processes that occur at the anode include which of the following? I. Zn(s) is oxidized to Zn2+(aq). II. Zn2+(aq) is reduced to Zn(s). III. H2(g) is oxidized to H+(aq). IV. 2 H+(aq) is reduced to H2(g).

11. A galvanic cell made of two half-cells. In one half-cell, a Zn electrode is bathed in a 1.0 M ZnSO4 solution. The other cell contains a 1 M HCl solution and a hydrogen electrode. The salt bridge is filled with a saturated solution of KNO3. Processes that occur at the salt bridge include which of the following? I. K+ moves into the anode half-cell. II. K+ moves into the cathode half-cell. III. NO3− moves into the anode half-cell. IV. NO3− moves into the cathode half-cell.

12. According to the information above, what is the standard reduction potential for the half-reaction ?

13. In which of the following species does chromium have the same oxidation number as in Cr2O42–?

14. Which of the following correctly relates the quantities needed for the conversion of chemical energy into electrical energy in a galvanic cell?

15. Which of the following correctly relates the quantities needed for the conversion of chemical energy into electrical energy in a galvanic cell?

16. The oxidation state most common to ions of Fe, Mn, and Zn in solution is:

17. A galvanic cell made of two half-cells. In one half-cell, a Zn electrode is bathed in a 1.0 M ZnSO4 solution. The other cell contains a 1 M HCl solution and a hydrogen electrode. Which of the following is the correct electron configuration for Zn2+?

18. A galvanic cell made of two half-cells. In one half-cell, a Zn electrode is bathed in a 1.0 M ZnSO4 solution. The other cell contains a 1 M HCl solution and a hydrogen electrode. Which of the following is true regarding the HCl half-cell?

19. The photodecomposition of permanganate is shown above. As this reaction proceeds in the forward direction and the reaction species are considered from left to right, the oxidation number of Mn changes from: