Question

What is the standard cell notation of a galvanic cell made with silver (Ag) and nickel (Ni)?

A. Ni_2+(aq) | Ni(s) || Ag(s) | Ag+(aq)
B. Agt(aq) | Ag(s) || Ni(s) | Ni_2+(aq)
C. Ag(s)| Ag(aq) || Ni_2+(aq) | Ni(s)
D. Ni(s) | Ni_2+(aq) || Ag+(aq) | Ag(s)

Answer 1

The correct standard cell notation for a galvanic cell involving silver and nickel is 'Ni(s) | Ni^2+(aq) || Ag+(aq) | Ag(s)', which corresponds to the cell configuration where nickel undergoes oxidation and silver undergoes reduction.

Step-by-step explanation:

The standard cell notation for a galvanic cell represents the oxidation and reduction half-cells, separated by a double line (||) which represents a salt bridge. Each half-cell is represented by the phase-bounded electrode (solid) followed by the electrolyte (aqueous solution), separated by a single line (|).

In the case of a galvanic cell made with silver (Ag) and nickel (Ni), we have the following cell reactions:

Combining these half-cell reactions into a standard cell notation, and considering the flow from anode to cathode, we would have:

Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s)

Therefore, the correct standard cell notation of this galvanic cell is option D: Ni(s) | Ni2+(aq) || Ag+(aq) | Ag(s).