[Electrochemisry] How to find the Cathode and Anode, and oxidation and reduction

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Discussion Overview

The discussion revolves around identifying the anode, cathode, and the processes of oxidation and reduction in an electrochemical cell setup involving copper and lead solutions. The context is primarily homework-related, focusing on the application of electrochemistry concepts.

Discussion Character

  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant describes their setup with Cu(NO3)2 and Pb(NO3)2 solutions and claims that copper is the anode undergoing oxidation while lead is the cathode undergoing reduction.
  • Another participant challenges this claim by referencing a simple reactivity series, suggesting that the initial conclusion may be incorrect.
  • A later reply indicates that the original poster believes they have arrived at the correct answer after further consideration.

Areas of Agreement / Disagreement

Participants do not reach a consensus, as there is disagreement regarding the identification of the anode and cathode based on the reactivity series.

Contextual Notes

There may be limitations related to the assumptions made about the reactivity series and the specific conditions of the electrochemical cell that are not fully explored in the discussion.

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Homework Statement


This is from a lab question, but i think i did it right, i would just like some confirmation. I had to make an electochmical cell for a lab, (actually mutiple ones) but it asks me to find the anode, cathode, and which chemical underwent oxidation and reduction. If you have a solution of Cu(NO3)2 with a copper strip in that solution, and another beaker with a solution of Pb(NO3)2, and a lead strip inside that solution with a salt bridge of KNO3 connecting them, then identify the cathode, anode, and the chemicals that underwent oxidation, and reduction.


Homework Equations


I used the Gr 12 Data booklet that has the Standard Reduction Potentials of Half Cells table in it.


The Attempt at a Solution


I said that the copper was the anode and it underwent oxidation and the lead was the cathode and it underwent reduction.
 
Last edited:
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Any help here would be appreciated. Thanks!
 
Simple reactivity series tells that you must be wrong.
 
ok i got the right answer now thanks a lot!
 

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