Enter electrons as e Use smallest possible integer coefficients. If a box is not

Question

Enter electrons as e Use smallest possible integer coefficients. If a box is not needed, leave it blank A voltaic electrochemical cell is constructed in which the following cell reaction occurs. The half-cell compartments are connected by a salt bridge Hg'(a)+Cu(s)Hg) Cu(aq) What is the reaction that takes place in the anode compartment? What is the reaction that takes place in the cathode compartment? In the external circuit, electrons migratethe Cu electrodethe g" electrode. In the salt bridgs, aninsmigrate he Hg marhe Cu compartiment

Explanation / Answer

Anode half reaction:

Cu (s) -----------> Cu2+ (aq.) + 2 e-

Cathode half reaction :

Hg2+ (aq.) + 2 e- ----------> Hg (l)

In the external circuit electrons migrate from Anode( left side electrode) the Cu electronde to Cathode ( right side electrode) the Hg2+ electrode.

In the salt bridge the anions migrate from cathode ( right compartment) the Hg2+ compartment to anode ( left compartmet) the Cu compartment.

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