Negative electrode and mass

  • Thread starter J89
  • Start date
  • #1
J89
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Homework Statement


If 3.00 10-3 kg of gold is deposited on the negative electrode of an electrolytic cell in a period of 2.62 h, what is the current in the cell during that period? Assume the gold ions carry one elementary unit of positive charge.




Homework Equations


delta Q/delta T
n*q*vd*A: n = moles, q=charge, vd=drift speed and A= cross sectional area of conductor.



The Attempt at a Solution



I'm having a bit trouble starting this because I think we have to derive an equation since we only have mass and the time, and nothing else given. I tried to put the two equations posted together, but it did not look right nor make sense. Can someone give a hint on how to start this?
 

Answers and Replies

  • #2
Borek
Mentor
28,600
3,078
Google Faraday's law of electrolysis.

But with some thinking you should be able to solve it on your own. There is one electron per atom - how many electrons per mole?
 
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