## pH and pOH

904940852
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

### pH and pOH

What is the difference between pH and pOH, what do they do, and how do you calculate them?

Kaileigh Yang 2I
Posts: 49
Joined: Sat Jul 22, 2017 3:00 am

### Re: pH and pOH

The pH scale measures the H+ concentration while the pOH scale measures the OH- concentration. Depending on which value you are given, one way to calculate the pH or the pOH of a solution is pH + pOH = 14.

Jesus Rodriguez 1J
Posts: 53
Joined: Sat Jul 22, 2017 3:00 am

### Re: pH and pOH

pH represents the concentration of H+ while pOH is a measure of concentration of OH-. You would calculate the value by taking the -log of concentration of the substance.

Reyna Alonso 1E
Posts: 18
Joined: Thu Jul 13, 2017 3:00 am
Been upvoted: 1 time

### Re: pH and pOH

The pH measures the [H+] while pOH measures [OH-]. You start of by taking the -log of one of the concentration either [H+] or [OH-] and then to solve for the other concentration then use the following equation; pH+pOH=14.

Shanmitha Arun 1L
Posts: 53
Joined: Fri Sep 29, 2017 7:04 am
Been upvoted: 1 time

### Re: pH and pOH

Dr. Lavelle's lecture went over pH and pOH but additionally watching this video may help. It gives a clear explanation.

Wayland Leung
Posts: 51
Joined: Sat Jul 22, 2017 3:00 am
Been upvoted: 1 time

### Re: pH and pOH

If the ph or pOH is 7, is the solution considered neutral, neither acidic nor neutral?

Dylan Davisson 2B
Posts: 50
Joined: Thu Jul 27, 2017 3:00 am
Been upvoted: 2 times

### Re: pH and pOH

If the pH is 7, the pOH has to be 7, and so they would be neutral. Neither the pH or the pOH would be favored in hydrogen ion concentration, so it would be no more acidic than it is basic.

605011646
Posts: 14
Joined: Fri Sep 29, 2017 7:07 am

### Re: pH and pOH

what does the "p" in pH stand for? does it have some significance?

Kristina Nguyen 1C
Posts: 29
Joined: Thu Jul 27, 2017 3:00 am

### Re: pH and pOH

The p in pH will stand for potential, potential hydrogen

Chloe Blume 1F
Posts: 15
Joined: Fri Sep 29, 2017 7:04 am

### Re: pH and pOH

Why is it more common to measure the pH of something rather than the pOH?

Kennedy Moore 1D
Posts: 14
Joined: Fri Sep 29, 2017 7:06 am

### Re: pH and pOH

pH is used more often because it is easier to measure the amount of H3O+ than of -OH

Return to “Calculating pH or pOH for Strong & Weak Acids & Bases”

### Who is online

Users browsing this forum: No registered users and 2 guests