Mg(s) | Mg2+(aq) Al3+(aq) | Al(s) and that is how a pro does it
The voltage of a galvanic cell made with magnesium (Mg) and gold (Au) can be calculated using their standard reduction potentials. Magnesium has a standard reduction potential of about -2.37 V, while gold has a standard reduction potential of +1.50 V. The overall cell potential can be calculated by subtracting the reduction potential of magnesium from that of gold, resulting in a voltage of approximately +3.87 V. This indicates that the galvanic cell can produce a significant amount of electrical energy.
Mg(s) | Mg2+(aq)Au+(aq) | Au(s)
In a standard galvanic cell using zinc and aluminum, the zinc metal will act as the anode and the aluminum metal will act as the cathode. Zinc will undergo oxidation at the anode, releasing electrons which flow through the external circuit to the cathode where aluminum will undergo reduction. This flow of electrons creates an electrical current.
The standard state of magnesium is solid.
This forms a galvanic (voltaic) cell (battery).
The standard cell notation for a galvanic cell with aluminum and gold electrodes is represented as: Al(s) | Al³⁺(aq) || Au³⁺(aq) | Au(s). In this notation, the anode (aluminum) is listed on the left, and the cathode (gold) is on the right. The double vertical line (||) indicates the salt bridge or separation between the two half-cells. The state of each component (solid or aqueous) is also noted.
Mg(s) | Mg2+(aq) Au+(aq) | Au(s)
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)
Al | Al^3+ Zn^2+ | Zn
Al(s) | Al3+(aq) Ni2+(aq) | Ni(s)
Mg(s) | Mg2+(aq) Au+(aq) | Au(s)
Type your answer here... Al(s) | Al3+(aq) Mg2+ (aq) | Mg(s)
Al(s) I AI3+(aq) II AI3+ (aq) I Al(s)
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)
Zn(s)/Zn2+(aq)//Au+(aq)/Au(s)