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1002 g sample containing only CC14 and CHC13 was dissolved in methanol and electrolyzed at the surface of a mercury electrode at -1.0V, which...
A 0.1002 g sample containing only CC14 and CHC13 was dissolved in methanol and electrolyzed at the surface of a mercury electrode at -1.0V, which required 50.20 s at a constant current of 0.200 A. The potential of the cathode was then adjusted and held constant at -1.80 V. Completion of the titration at this potential required 382.35 s at a constant current of 0.200 A. Calculate the respective percentages of CC14 and CHC13 in the mixture. The electrolysis reactions are given below.2CCl14 + 2H^+ + 2e- + 2Hg(l) --> 2CHCl3 + Hg2Cl2(s) [occurs at -1.0V]2CHCl3 + 6H^+ + 6e- + 6Hg(l) --> 2CH4 + 3Hg2Cl2(s)[occurs at -1.80V]
A]0.1002 g sample containing only CC14 and CHC13 was dissolved in methanol andelectrolyzed at the surface of a mercury electrode at -1.0V, which required 50.20 s at aconstant current of 0.200 A....