A calculate the standard cell potential for the following

Question

Standard Reduction Potentials

Cu²⁺ | Cu        +0.34V

Ni²⁺  | Ni         -0.24V

Co²⁺ | Co        -0.28V

Fe²⁺ | Fe        -0.44V

Zn²⁺ | Zn        -0.76V

Mg²⁺ | Mg       -2.36V

a) Calculate the standard cell potential for the following cell

Cu (s) | Cu²⁺ (aq) (1M) || Co²⁺ (aq) (1M) | Co (s)

b) The following cell was constructed and found to produce a voltage of 1.08 V.

Co (s) | Co²⁺ (aq) (1M) || Ag⁺ (aq) (1M) | Ag (s)

Calculate the standard reduction potential for Ag⁺ (aq) | Ag (s)

c) Which of these species is the best oxidising agent? (please explain)

1.Mg²⁺(aq)

2.Zn²⁺(aq)

3. Co²⁺(aq)

4. Fe²⁺(aq)