Use the References to access important values if needed for this question Enter

Question

Use the References to access important values if needed for this 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 half-cell compartments are connected by a salt bridge Br2(1) + 2Fe2+(aq)-> 2Br-(aq) + 2Fe3+(aq) The anode reaction is Co Co The cathode reaction is: Co In the external circuit, electrons migratethe Fe*Fe* electrode the Br' Br2 electrode. In the salt bridge, anions migrate the Fe2 Fe3+ compartmentthe Br Br2 compartment.

Explanation / Answer

at anode : Br2(l) + 2e-    --->   2Br-(aq)

at cathode : Fe^2+(aq) ----> Fe^3+(aq) + 1e-

electrons migrate from anode to cathode.

    anode: Br-/Br2

    cathode : Fe^2+/Fe^3+

in the salt bridge, anions migrate in to anode compartment(Br-/Br2)

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