1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Electrolytic Purification of Nickel

  1. Apr 28, 2012 #1
    1. The problem statement, all variables and given/known data

    Page 7 Part (c) is where I'm having some doubts. The nickel question.

    2. Relevant equations

    Ni2+/Ni = –0.25V
    Fe2+/Fe = –0.44V

    3. The attempt at a solution

    I believe that since the electrode potentials are quite negative (see above) then both Nickel and Iron will go into solution as ions.

    Furthermore, only Nickel would be deposited at the Cathode due to its more positive potential relative to Iron.

    However, the mark scheme seems to be implying that only the Fe goes into solution. This is what it says word for word :

    Am I correct ?
  2. jcsd
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted