Answered

copper metal is electrolytically plated onto a pt electrode from an aqueous solution. a 1.23 ampere current was passed through the electrolysis cell for 12minutes. how much copper metal was deposited? assume that excess cu2 remained after electrolysis. report your answer in grams.



Answer :

Neetoo

The amount of copper metal deposited by electrolysis will be 0.516 g

Given data:

Current = 1.23 amp

Time = 12 min

  Convert minutes into seconds

  12 min * 60 Sec = 720 sec

Now we will find out the number of coulombs

  Number of coulombs = 1.23 amp * 720 sec

  Number of coulombs = 885.6 coulombs

As we know that 96,485 C will deposit 1 eq. of Cd metal:

which is 112.41 / 2 = 56.2 g

In the last step, we will find out the deposited Cd:

  Deposited Cd = 56.2 g * (885.6 C / 96,485 C)

  Deposited Cd = 56.2 g * 0.00918

  Deposited Cd = 0.516 g

You can also learn about electrolysis from the following question:

https://brainly.com/question/12054569

#SPJ4

Other Questions