• Support PF! Buy your school textbooks, materials and every day products Here!

Simple redox question

  • Thread starter geffman1
  • Start date
  • #1
67
0

Homework Statement



hey guys this question looks easy, but im confused? any help/tips would be appreciated
Which of the following is the best reducing agent?

Cl2 + 2e- 2Cl-; E° = 1.36 V
Mg2+ + 2e- Mg; E° = -2.37 V
2H+ + 2e- H2; E° = 0.00 V




Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
symbolipoint
Homework Helper
Education Advisor
Gold Member
5,777
995
You listed reaction half cells showing consumtion of electrons. What you want then is which half cell when written as a supplier of electrons would have the largest positive value?
 
  • #3
67
0
woudl that be mg? cuase when ya flip you change the sign?
 
  • #4
Borek
Mentor
28,326
2,707
Obviously it has something to do with standard potentials listed, isn't it? So the real question is, do you need high or low potential for reduction... Is chlorine an oxidizing, or reducing agent? Once you will know answer, you will know which end of the scale is which.
 

Related Threads for: Simple redox question

  • Last Post
Replies
2
Views
2K
Replies
2
Views
945
  • Last Post
Replies
9
Views
2K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
2
Views
4K
  • Last Post
Replies
3
Views
8K
  • Last Post
Replies
7
Views
5K
  • Last Post
Replies
3
Views
1K
Top