Ask a New Question
Menu

I'm doing a redox potential/lead acid cell experiment and one of the questions that were asked was:

-What were the identities of the gases you saw being produced at the + and - electrodes during the cell conditioning process?
We used H2SO4

How do I go about answering this, I don't know what gases were produced, other than I knew something was produced. I can't find the answer in my textbook or lab manual. Help me!

1 answer

The lead/acid cell is
PbO2 + H2SO4 ==> PbSO4 + 2H2O
I assume you mean by conditioning that you are charging the cell from scratch. So the water is electrolyzed and you would expect H2 gas to be formed at the - electrode and O2 gas to be formed at the + electrode.
Similar Questions
  1. The half reaction that occurs in a lead-acid battery are PbSO4(s)+2e- Pb(s)+ ----- SO^2- E' =0.36VPbO2(s) + 4H^+(aq)+ SO + 2e
    1. answers icon 1 answer
    1. answers icon 1 answer
  3. Lead metal is added to a solution of hydrochloric acid.What would be the theoretical cell potential, E°, for the reaction?
    1. answers icon 1 answer
  4. A voltaic cell employs the following redox reaction:Sn^2+(aq)+ Mn(s)--> Sn(s) + Mn^2+(aq) Calculate the cell potential at 25
    1. answers icon 3 answers
more similar questions