Posted by **Sienna** on Tuesday, January 16, 2007 at 8:36pm.

when you have your 4 different equations to form 4 different possible equations, what two equations do you use for water,

O2(aq) + 4H+ + 4e- ----> 2H20 (+1.23)

02 (g) + 2H2O (l) + 4e- ----> 4OH- (+0.40)

2H20 (l) + 2e- ---> h2 (g) + 2OH- (aq) (-0.83)

I'm not quite sure what you are after but I need to point out that you make a statement about four different equations but write only three. Then you ask what two equations to use (out of the three or out of four)? Anyway, the first one occurs in acid solution and the last two occur in basic solution.

## Answer This Question

## Related Questions

- someone correct my work please? fun, fun chemistry - Okay. I'm very, very ...
- Chemistry - What are the equations for these two equations? Not net ionic ...
- Chemistry - I have know clue how to answer this, but I tried something.(...
- PLEASE HELP WITH DIFFERENTIAL EQUATIONS QUESTION?? - Which of these equations ...
- Algebra Quadratic Equations - I am trying to define the different appraoches to ...
- Chemistry - When solving Hess law problems,do we need to use all the equations ...
- intermediate algebra - use the discriminant to determine whether the following ...
- Intermediate Algebra - Please Help!! Use the discriminant to determine whether ...
- Algebra - Can someone help me with this question? Use the discriminant to ...
- math - Use the discriminant to determine whether the following equations have ...

More Related Questions