1. Tardigrade
  2. Question
  3. Chemistry
  4. A 200 W , 110 V incandescent lamp is connected in series with an electrolytic cell of negligible resistance containing a solution of ZnCl 2. What weight of Zn will be deposited from the solution on passing current for 30 minutes? (At. wt. of Zn =65.4 )

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. A $200\, W , 110\, V$ incandescent lamp is connected in series with an electrolytic cell of negligible resistance containing a solution of $ZnCl _{2}$. What weight of $Zn$ will be deposited from the solution on passing current for $30$ minutes? (At. wt. of $Zn =65.4$ )

Electrochemistry

Solution:

Power $=$ Volt $\times$ Current
$200=110 \times i$
$i =20 / 11 \left[ E =\frac{65.4}{2}\right]$
$W=\frac{E}{96500} \times i \times t$
$=\frac{65.4}{2 \times 96500} \times \frac{20}{11} \times 30 \times 60$
$=1.10\, g$