Question 1
A galvanic cell consists of a Zn
2+/Zn half-cell and a standard hydrogen electrode. If the Zn
2+/Zn half-cell standard cell functions as the anode, and the standard cell potential is 0.76 V, what is the standard reduction potential for the Zn
2+/Zn half-cell?
◦ -0.38 V
◦ +0.76 V
◦ +0.38 V
◦ -0.76 V
Question 2
A galvanic cell consists of one half-cell that contains Ag(
s) and Ag
+(
aq), and one half-cell that contains Cu(
s) and Cu
2+(
aq). What species are produced at the electrodes under standard conditions?
| Ag+(aq) + e- → Ag(s) | E° = +0.80 V |
| Cu2+(aq) + 2 e- → Cu(s) | E° = +0.34 V |
◦ Cu
2+(
aq) is formed at the cathode, and Cu(
s) is formed at the anode.
◦ Ag(
aq) is formed at the cathode, and Cu(
s) is formed at the anode.
◦ Cu(
s) is formed at the cathode, and Ag
+(
aq) is formed at the anode.
◦ Ag(
s) is formed at the cathode, and Cu
2+(
aq) is formed at the anode.
The Eukaryotic Cell
Animal Cell Diagram
DNA consists of two complementary strands wound around each other to form
the four stages of the cell cycle
cell organelles
Major cell cycle checkpoints