What means of line notation of galvanic cell of Mg and Al with diagram
The line notation for a galvanic cell consists of the anode on the left and the cathode on the right, separated by a double vertical line. The electrolyte and phase boundary are usually noted on either side of the line notation.
For a galvanic cell consisting of a magnesium (Mg) anode and an aluminum (Al) cathode, the line notation would be:
Mg(s) | Mg2+(aq) || Al3+(aq) | Al(s)
This notation indicates that the reaction at the anode (Mg → Mg2+ + 2e-) is taking place on the left side, while the reaction at the cathode (Al3+ + 3e- → Al) is taking place on the right side. The double vertical line represents the phase boundary between the two half-cells.
A diagram of the galvanic cell would show the two half-cells connected by a salt bridge or porous barrier, with metal electrodes immersed in their respective electrolyte solutions. The anode (Mg) would be on the left, and the cathode (Al) would be on the right, with the flow of electrons indicated from left to right.电解质和相界面通常在该符号的两侧。