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Ahemen Azoom Grade:
        Calculate the time required to deposit 56g of silver from a silver nitrate solution using a current of 4.5A.
6 years ago

Answers : (2)

Suneeta Sharma
24 Points
										

 


  • mass Ag deposited = 56g 

  • MM = 107.9 g mol-1 (from Periodic Table) 

  • n (Ag) 56 ÷ 107.9 = 0.519 mol = n(e)



  • n(e) = 0.519 mol 
    F = 96,500 C mol-1

    Q = 0.519 x 96,500 = 50,083.5 C

    Q = 50,083.5 C   I = 4.5 A 


     


    t = Q/I
    t = 50,083.5 ÷ 4.5 = 11,129.67 seconds 
    t = 11,129.67 ÷ 60 = 185.5 minutes 
    t = 185.5 ÷ 60 = 3.1 hours

    6 years ago
    rohit kantheti
    20 Points
    										

    WIEGHT DEPOSITED=EQUIVALENT WIEGHT*CURRENT(i)*TIME TAKEN FOR THE DEPOSIT(t)/96500


                AND THUS 45=108*4.5*t/96500

    6 years ago
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