# Using the standard electrode potentials given in the Table 8.1, predict if the reaction between the following is feasible:

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Using the standard electrode potentials given in the Table 8.1, predict if the reaction between the following is feasible:

(a) Fe3+(aq) and I (aq)

(b) Ag+(aq) and Cu(s)

(c) Fe3+ (aq) and Cu(s)

(d) Ag(s) and Fe3+(aq)

(e) Br2(aq) and Fe2+(aq)

by (128k points)

(a) The possible reaction between  Fe3+(aq) +  I-(aq)

2Fe3-  +  2I- (aq)   →    2Fe2+  +  I2(s)         is given by, E° for the overall reaction is positive. Thus, the reaction between  Fe3+(aq) and  I-(aq) is feasible

(b) The possible reaction between  Ag+(aq)  +  Cu(s) is given by, E° positive for the overall reaction is positive. Hence, the reaction between  Ag+(aq) and Cu(s) is feasible.

(c) The possible reaction between Fe3+(aq) and  Cu(s)  is given by, E° positive for the overall reaction is positive. Hence, the reaction between Fe3+(aq) and Cu(s) is feasible.

(d) The possible reaction between Ag(s) and  Fe3+(aq) Here, E° for the overall reaction is negative. Hence, the reaction between Ag(s) and Fe3+(aq) is not feasible.

(e) The possible reaction between Br2(aq) and Fe2+(aq) is given by, Here, E° for the overall reaction is positive. Hence, the reaction between Br2(aq) and Fe2+(aq) is feasible