Question 1
Based on the half-reactions and their respective standard reduction potentials below, the strongest reducing agent is ________, and the strongest oxidizing agent is ________.
Fe3+(aq) + e- → Fe2+(aq) | 0.77 V |
Cu2+(aq) + 2 e- → Cu (aq) | 0.15 V |
Zn2+(aq) + 2 e- → Zn(s) | -0.76 V |
Question 2
The standard cell potential for the following galvanic cell is 1.21 V.
Al(s)|Al3+(aq)||Fe2+(aq)|Fe(s)
When [Al
3+] = 0.10 M and [Fe
2+] = 0.10 M, will the cell potential at 25°C be less than, the same as, or greater than 1.21 V?