[OH-] & pOH

Moderators: Chem_Mod, Chem_Admin

Labiba Sardar 2A
Posts: 103
Joined: Sat Jul 20, 2019 12:15 am

[OH-] & pOH

Postby Labiba Sardar 2A » Sat Dec 07, 2019 11:38 am

Can someone please explain conceptually why decreasing [OH-] makes the pOH increase?

Joowon Seo 3A
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am
Been upvoted: 1 time

Re: [OH-] & pOH

Postby Joowon Seo 3A » Sat Dec 07, 2019 12:40 pm

The p in p[OH-] stands for -log base 10. You can look at a graph of y=p(x). When the inputted value increases, the function decreases. Likewise the value of When the concentration of OH- decreases, the function p[OH-] increases. This is true for [H+] as well.

Posts: 103
Joined: Sat Aug 17, 2019 12:17 am

Re: [OH-] & pOH

Postby DLee_1L » Sun Dec 08, 2019 5:24 pm

Yeah, think of pOH is for OH just as pH is for H. Its just that pH is used more often.

Kelly Yun 2I
Posts: 108
Joined: Wed Sep 30, 2020 10:03 pm

Re: [OH-] & pOH

Postby Kelly Yun 2I » Sat Dec 05, 2020 11:08 pm

pH or pOH is the negative log of the concentration of the molecule, which means that they have an inverse relationship.

Return to “Calculating the pH of Salt Solutions”

Who is online

Users browsing this forum: No registered users and 2 guests