How much charge must be supplied to a cell for the electrolytic production of 245 g NaClo4 from
NaClO3? Because of a side reaction, the anode efficiency for the desired reaction is 60 %? [ ]
1) 6.43 x 105C 2) 6.67 F
3) 6.43 x 106C 4) 66.67 F
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Answer:
Option (b)
Explanation:
NaClO
3
+H
2
O→NaClO
4
+H
2
ClO
3
−
+H
2
O→NaClO
4
−
+2e
−
+2H
+
n
f
=2
w=Zit
245g=
n
f
×F
mol.wt
×Q×anodeefficiency
122.44×0.66
245×2×96500
=Q
Q=6.669
Therefore, The right answer is 6.67 F
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