Transcript CH20B3

 CRS Questions Follow:
Slide 1 of 54
Given the two electrochemical
cells to the right, a cell
constructed according to the
following shorthand notation
Zn(s) Zn 2+ (1 M) Cu 2 (1 M) Cu(s)
has a cell potential of:
1. 1.103
3. -0.423
2. 0.423
4. -1.103
Slide 2 of 54
Given the two electrochemical
cells to the right, a cell
constructed according to the
following shorthand notation
Zn(s) Zn 2+ (1 M) Cu 2 (1 M) Cu(s)
has a cell potential of:
1. 1.103
3. -0.423
2. 0.423
4. -1.103
Slide 3 of 54
Given the electrochemical cells to the
right, what would be the cell potential for
the electrochemical cell constructed as
indicated by the following shorthand
notation?
Zn(s) Zn 2+ (1 M) Ag  (1 M) Ag(s)
1. 2.023
2. 1.563
3. 0.643
4. -0.643
5. -1.563
Slide 4 of 54
Given the electrochemical cells to the
right, what would be the cell potential for
the electrochemical cell constructed as
indicated by the following shorthand
notation?
Zn(s) Zn 2+ (1 M) Ag  (1 M) Ag(s)
1. 2.023
2. 1.563
3. 0.643
4. -0.643
5. -1.563
Slide 5 of 54
Which of the following would result
in an increase in the cell potential?
1. Decreasing [Ag+] in the cathode.
2. Decreasing [Fe2+] in the anode.
3. Decreasing [Fe3+] in the anode.
4. Adding NaCl to the cathode.
5. Increasing [KNO3] in the salt bridge.
Slide 6 of 54
Which of the following would result
in an increase in the cell potential?
1. Decreasing [Ag+] in the cathode.
2. Decreasing [Fe2+] in the anode.
3. Decreasing [Fe3+] in the anode.
4. Adding NaCl to the cathode.
5. Increasing [KNO3] in the salt bridge.
Slide 7 of 54