In part (a), I am not sure I understand why it would cl2 not fe, because accordi

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In part (a), I am not sure I understand why it would cl2 not fe, because according to the standard reduction potential in aq slt chart, cl2 is in the top whereas fe is in the bottom making cl2 reduction reaction and fe oxidation.

uestion #3-1997 B In an electrolytic cell, a current of 0.250 ampere is passed through a solution of a chloride of iron, producing Fe(s) and Cl2g) (a) Write the equation for the half-reaction that occurs at the anode (b) When the cell operates for 2.00 hours, 0.521 gram of iron is deposited at one electrode. Determine the formula of the chloride of iron in the original solution. (c) Write the balanced equation for the overall reaction that occurs in the cel. (d) How many liters of Cl2f, measured at 25°C and 750 mm Hg, are produced when the cell operates as described in part (b)? (e) Calculate the current that would produce chlorine gas from the solution at a rate of 3.00 grams per hour. Answer: (a) 2 Cl-2 e-Cl2 (b) 0.250 amp × 7200 sec-1800 coulomb l mol e' 1800 coul x 96500 coul = 0.0187 mol e. 1 mol Fe 0.521 g Fe x 55.85 g Fe 0.00933 mol Fe 0.0187 mol e 2 0.00933 mol Fe 1 Fe2+ + 2e-? Fe ; FeCl2 (c) Fe2* + 2 CI-Fe Cl2 1 mol Cl 2 (d) 0.0187 mol ex 2 mol e 0.00933 mol C12

Explanation / Answer

Always you remember that, at anode always taking oxidation and at cathode always reduction. conversion of Cl- to Cl2 is take place at anode and Fe2+ to Fe at cathode.

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