1
Which of the following is true?
- Oxidation occurs at the cathode and oxidation occurs at the anode.
- Reduction occurs at the cathode and oxidation occurs at the anode.
- Oxidation occurs at the cathode and reduction occurs at the anode.
- Reduction occurs at the cathode and oxidation occurs at the cathode.
Reduction occurs at the cathode and oxidation occurs at the anode.
2
A metal anode has a standard reduction potential of minus 1.56 V and the cathode has a reduction potential of minus 1.16 V. What is the E0 cell?
- -0.40 V
- +2.72 V
- +0.40 V
- -2.72 V
+0.40 V
Ex.
E0 cell = E0 reduction (cathode) - E0 oxidation (anode)
E0 cell = (-1.16 V) - (-1.56 V)
E0 cell = +0.40 V
3
What solution is used as the salt bridge in all of these experiments?
- C u(NO3)2
- Zn(NO3)2
- A l(NO3)3
- Pb(NO3)2
- KNO3
KNO3
4
Use Equation 5 and the Standard Reduction Potentials table to determine which statement is true. Remember that any spontaneously operating cell has a positive E0 cell value.
- Aluminum is the cathode and copper is the anode.
- Copper is the cathode and zinc is the anode.
- Zinc is the cathode and copper is the anode.
- Zinc is the cathode and lead is the anode.
- Aluminum is the cathode and zinc is the anode.
- Copper is the anode and aluminum is the cathode.
- Aluminum is the cathode and lead is the anode.
- Copper is the anode and lead is the cathode.
Copper is the cathode and zinc is the anode.