Answer:
Question1)
Given in question,
Current (I)= 0.740 A
Time (t)= 27.5minutes= 27.5×60= 1650 Sec
We have to calculate the mass of tin metal in grams.
Solution:
First of all we will find the charge,so
Q=I×t=0.74×1650
=1221 C
Now,
The no of moles of electron=(Q÷F)
Where F = 1 Faraday which is 96485 C
So,
=1221/96485=0.012 moles
TO FIND THE NO OF GRAMS WE HAVE TO MULTIPLY THE NO OF MOLES WITH MOLAR MASS OF TIN WHICH IS 118.7g/mole,hence
=0.012×118.7=1.42 g
hence the mass of tin metal deposited=1.42g.
Question2)
The 2nd question can be solved just like the 1st question and the mass of copper metal deposited will be 1.09g.
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