Enter electrons as e Use smallest possible integer coefficients for ALL reaction

Question

Enter electrons as e Use smallest possible integer coefficients for ALL reactions. If a box is not needed, leave it blank. A voltaic cell is constructed in which the following cell reaction occurs. The halfcell compartments are connected by a salt bridge. The anode reaction is: The cathode reaction is: In the external circuit, electrons migrate V the HiglHg" electrode the ColCo electrode. In the salt bridge, anions migrate V the HglHg" compartment l the CoCo' compartment No more group attempts remain Retry Entire Group Submit Answer

Explanation / Answer

1) At anode oxidation reaction occurs.Thus the anode reaction is :-

Co(s) --------> Co2+(aq) + 2e-

At cathode reduction reaction occurs.Thus, the cathode reaction is :-

Hg2+(aq) + 2e-  -----> Hg(l)

In the external circuit electrons mitigate to Hg/Hg2+from Co/Co2+.

2) Anode reaction :- Al(s) ------> Al3+(aq)

Cathode reaction :- Co2+(aq) -------> Co(s)

In the external circuit electrons mitigate from Al/Al3+ to Co/Co2+.

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