1.

Depict the galvanic cell in which the reaction Zn(s)+2Ag^(+)(aq)toZn^(2+)(aq)+2Ag(s) takes place. Further, show (i) which of the electrodes is negatively charged? (ii) the carriers of the current in the cell. (iii) Individual reaction at each electrode.

Answer»

Solution :The set-up will be similar to that. The CELL will be represented as:
`Zn(s)|Zn^(2+)(aq)||Ag^(+)(aq)|Ag(s)`
(i) Anode, i.e.,z inc electrode will be negatively charged.
(ii) The CURRENT will flow from silver to COPPER in the external circuit.
(iii) At anode: `Zn(s)TOZN^(2+)(aq)+2e^(-)`
At CATHODE: `Ag^(+)(aq)+etoAg`


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