pOH

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paulacamara1E
Posts: 30
Joined: Fri Apr 06, 2018 11:05 am

pOH

Postby paulacamara1E » Sun Jun 10, 2018 10:55 pm

For the final, do we need to know how to calculate pOH, or just pH?

Mohamad Farhat 1L
Posts: 40
Joined: Fri Apr 06, 2018 11:02 am

Re: pOH

Postby Mohamad Farhat 1L » Sun Jun 10, 2018 10:56 pm

I believe so we do.

Dina Geotas 4A
Posts: 61
Joined: Fri Sep 28, 2018 12:29 am

Re: pOH

Postby Dina Geotas 4A » Mon Dec 03, 2018 4:09 pm

I think we need to know both because they go hand in hand! pOH = 14 - pH!

Adam Vuilleumier 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: pOH

Postby Adam Vuilleumier 2K » Mon Dec 03, 2018 4:12 pm

Just know that pOH is the -log[OH-] and a low pOH means that the solution is more basic. While we're on this topic, does anyone know why a low pKA means that it is a stronger acid?

Andrewwiner4D
Posts: 32
Joined: Fri Sep 28, 2018 12:28 am

Re: pOH

Postby Andrewwiner4D » Mon Dec 03, 2018 4:20 pm

We do need to be able to do both. In all the homework problems (or most) you had to find both. But they are pretty easy and depending on which compounds we are working with it is a useful skill.

Yukta Italia 3I
Posts: 31
Joined: Fri Sep 28, 2018 12:24 am

Re: pOH

Postby Yukta Italia 3I » Mon Dec 03, 2018 5:44 pm

Adam Vuilleumier 4E wrote:Just know that pOH is the -log[OH-] and a low pOH means that the solution is more basic. While we're on this topic, does anyone know why a low pKA means that it is a stronger acid?

The higher the pKA value, the more tight the proton is held. Since one of the properties of a strong acid is its ability to lose a proton, the lower pKA value leads to stronger acidity. Also, a low pKA value means there is a high KA value, which also leads to stronger acidity.


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