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when molten zinc chloride (zncl2) is electrolyzed, zinc is deposited at the cathode. calculate the amount of zinc produced if a current of 11.7 a is passed through the electrolytic cell for 45.6 min.

Sagot :

The amount of zinc produced is 10.83 g.

given that :

current , I = 11.7 A

time , t = 45.6 min = 2736 sec

the expression is given as :

W = ZIt

W = amount of the substance deposited

I = current in ampere = 11.7 A

t = time in sec  = 2736 sec

Z = M / nF

where,

M = molecular mass = 65.3 g/mol

n = no. of electrons = 2

F = faraday constant = 96500 C

W = (65.3 / 2 × 96500 ) 11.7 × 2736

W = 10.83 g

Thus, when molten zinc chloride (zncl2) is electrolyzed, zinc is deposited at the cathode.  the amount of zinc produced if a current of 11.7 a is passed through the electrolytic cell for 45.6 min is 10.83 g.

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