## Test #2

$\Delta G^{\circ} = -nFE_{cell}^{\circ}$

Riya Shah 4H
Posts: 65
Joined: Wed May 02, 2018 3:00 am

### Test #2

If anyone has got their test back, could you please solve the question about deprotonation of H2O? Or if you remember how you did it, please answer.

melodyzaki2E
Posts: 61
Joined: Fri Sep 28, 2018 12:18 am

### Re: Test #2

I think for that one you had to solve for the Kw value at the lower temperature and then take the square root of that value to find the H+ concentration. If that value was lower than 10^-7 (which is the H+ concentration at pH of 7) then I think your solution was acidic because you had more H+ than OH- and vice versa.

Nicolle Fernandez 1E
Posts: 56
Joined: Fri Sep 28, 2018 12:25 am
Been upvoted: 1 time

### Re: Test #2

There is an equation on the equations sheet that had both initial temperature as well as the second temperature. You would plug in the information to find the H+ concentration.