6A current is passed for 19104 sec to deposit 78 g gold from a solution of AuCl4- then the mass of chlorine gas will be formed simultaneously at the anode of electrolytic cell?

Asked by thakurpratyush5 | 11th Jul, 2015, 10:10: AM

Expert Answer:

begin mathsize 11px style The space chemical space equation space is space given space as comma AuCl subscript 4 to the power of minus space space plus space space 3 straight e to the power of minus space space rightwards arrow space space Au space space space plus space space space 4 Cl to the power of minus space space space space space space space space space space space space space space space space space space space space space space Cl to the power of minus space space rightwards arrow space space 1 half Cl subscript 2 space space plus space space straight e to the power of minus According space to space the space formula comma therefore space straight w subscript Au space equals space fraction numerator straight E. straight i. straight t over denominator 96500 end fraction space space space space space space space space space space space space space space space equals fraction numerator 197 space cross times space 6 cross times space straight t over denominator 3 space cross times space 96500 end fraction space space space space space space space space space space space space space space space equals 78.0 Since comma space it space is space given space that space straight t equals space 19104 space sec. Also comma space the space Eq. space of space Au space equals space Eq. space of space Cl subscript 2 fraction numerator 78 over denominator begin display style 197 over 3 end style end fraction space equals space fraction numerator straight w over denominator begin display style 71 over 2 end style end fraction space therefore space straight w subscript Cl subscript 2 end subscript space equals space bold 42 bold. bold 16 bold space bold g space space space space space space space space space space space space space space space end style

Answered by Hanisha Vyas | 13th Jul, 2015, 12:23: PM