Depict the galvanic cell in which the reaction Zn(s) + 2Ag+(aq) → Zn2+(aq) + 2Ag(s) takes place, further show:

Question

Depict the galvanic cell in which the reaction Zn_(s) + 2Ag⁺_(aq) → Zn²⁺_(aq) + 2A_(s) takes place, further show: 

(i) which of the electrode is negatively charged, 

(ii)the carriers of the current in the cell, and 

(iii) individual reaction at each electrode. 

Answer 1

Answer: We have

The galvanic cell corresponding to the given redox reaction can be represented as: 

Zn / Zn²⁺_(aq)  //  Ag⁺_(aq)  /  Ag

(i) Zn electrode is negatively charged because at this electrode, Zn oxidizes to Zn²⁺ and the leaving electrons accumulate on this electrode. 

(ii) Ions are the carriers of current in the cell. 

(iii) The reaction taking place at Zn electrode can be represented as: 

Zn_(s)    →    Zn²⁺   +  2e^-

And the reaction taking place at Ag electrode can be represented as: