Chemistry 30 Redox tables

  • Thread starter ahhhh
  • Start date
  • #1
2
0

Homework Statement



I'm working on redox tables and I'm really confused. I know how to write out the half reactions, but i don't understand how you tell which is the strongest oxidizing agent or the weakest. Same thing with reducing agents which is strongest or weakest? Help please...

Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
2
0
I'm working on redox tables and I'm really confused. I know how to write out the half reactions, but i don't understand how you tell which is the strongest oxidizing agent or the weakest. Same thing with reducing agents which is strongest or weakest? Help please...
 
  • #4
8
0
Okay, take for instance, a standard Copper/Zinc Galvanic Cell. When you look at the Standard Potential table [which I presume is what you're wondering about], look at the value and see whether if it like to remain as the ion or the solid [which what Redox is]. The more reactive metal, will like to become the ion, and in the case of the Copper/Zinc -

Zn2+ + 2e- [tex]\rightarrow[/tex] Zn (-0.76V)

Cu2+ + 2e- [tex]\rightarrow[/tex] Cu(0.34V)

Zinc likes to give off it's electrons to become the ion, hence the reverse voltage. So, simplified, just look at the Standard Potential if it is LOWER, so here, Zinc is being oxidized and Copper is being reduced. Hope that helped.
 
  • #5
berkeman
Mentor
59,013
9,109
(Two threads merged)
 

Related Threads on Chemistry 30 Redox tables

  • Last Post
Replies
3
Views
16K
  • Last Post
Replies
3
Views
9K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
4
Views
2K
Replies
7
Views
10K
Replies
5
Views
7K
Replies
5
Views
3K
Replies
0
Views
5K
  • Last Post
Replies
5
Views
3K
Top