Calculate the potential (voltage) of a standard cell

Click For Summary

Discussion Overview

The discussion revolves around calculating the potential (voltage) of a standard cell based on provided half-cell reactions. The focus is on the electrochemical principles involved in determining cell potential, with references to standard reduction potentials.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • One participant requests the calculation of the cell potential (E_{cell}) for the given half-cell reactions.
  • Another participant suggests that the standard reduction potentials (E_{cell}) for the reactions may be found in a list or provided in the problem statement.
  • A third participant reiterates the request for the calculation and emphasizes adherence to posting guidelines, indicating that direct assistance with homework is not permitted.
  • One participant provides specific values for the standard reduction potentials, stating -0.25 V for the first half-reaction and 1.360 V for the second half-reaction.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the calculation process, and there are differing approaches to addressing the homework request. Some participants focus on providing information, while others emphasize the guidelines against direct assistance.

Contextual Notes

The discussion does not clarify the source of the provided standard reduction potentials or their applicability to the specific half-cell reactions mentioned. There is also no resolution on how to combine these potentials to find the overall cell potential.

Who May Find This Useful

This discussion may be useful for students studying electrochemistry, particularly those interested in standard cell potentials and the application of half-cell reactions in calculations.

Gab009
Messages
2
Reaction score
0
Calculate the potential (voltage) of a standard cell with these half-cell reactions:
Ni(s) -----> Ni2+ + 2 e-
2 e- + Cl2(g) -----> 2 Cl-

:cry:
 
Physics news on Phys.org
What is your [tex]E_{cell}[/tex] for each redox reaction?
Either they are in the problem, or there is a list that has all the [tex]E_{cell}[/tex] for many reactions.
 
Gab009 said:
Calculate the potential (voltage) of a standard cell with these half-cell reactions:
Ni(s) -----> Ni2+ + 2 e-
2 e- + Cl2(g) -----> 2 Cl-

:cry:
Please read the posting guidelines - we can not do your homework for you.

https://www.physicsforums.com/showthread.php?t=93677
 
the first is -0.25; the second is 1.360
 

Similar threads

Chemistry How to find the pH of a galvanic cell (MIT OCW problem set)
  • · Replies 2 ·
Replies
2
Views
4K
Chemistry What does this equation for an electrochemical cell mean?
  • · Replies 4 ·
Replies
4
Views
2K
Chemistry How to apply Nernst equation in this problem?
  • · Replies 3 ·
Replies
3
Views
3K
Chemistry "The oxidized species of the couple is very oxidizing". Does this make sense?
  • · Replies 5 ·
Replies
5
Views
2K
Chemistry How Does Electrolyte Type Influence Voltage in Galvanic Cells?
  • · Replies 6 ·
Replies
6
Views
4K
Calculating EMF of a Cell: Ni(s) | Ni2+ (0.1M) || Au3+ (1.0M) | Au (s)
  • · Replies 7 ·
Replies
7
Views
4K
What Is the Cell Potential When Pb Electrode Mass Changes?
  • · Replies 10 ·
Replies
10
Views
4K
Which is the Anode and Which is the Cathode in this Cell?
  • · Replies 1 ·
Replies
1
Views
3K
Why Do Standard Reduction Potentials Differ in Textbooks?
  • · Replies 6 ·
Replies
6
Views
3K
Solving a Voitaic Cell: 0.45V Electrochemical Potential
  • · Replies 1 ·
Replies
1
Views
5K