Question

Depict the galvanic cell in which the reaction Zn(s]+2Ag⁺(aq) → Zn²⁺(aq)+2Ag(s) takes place. Further show: (i) Which of the electrode is negatively charged? (ii) The carriers of the current in the cell. (iii) Individual reaction at each electrode.

Answer 1

Galvanic cell:A galvanic cell, is named after the two  famous scientists  Luigi Galvani, or Alessandro Volta respectively. It is an electrochemical cell that produce electrical energy from by self-motivated  redox reactions taking place in the cell.

The galvanic cell where the given reactions takes place,  are described below:

1_Zn electrode act as anode in galvanic cell, so it has negatively charged.

2_Electrons move from anode towards cathode in the external circuitry and the direction of flow of current is always opposite to the flow of electrons.

So,  that current will flow from silver  cathode to zinc anode.3)At anode cell reaction is:

ZnS ( S )--------------------àZn 2+(aq)  +2e-1At cathode : Ag +  + e-1-------------àAg (s )