pH and pOH

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

pH and pOH

Postby 904940852 » Sat Dec 02, 2017 11:45 pm

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

Kaileigh Yang 2I
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Re: pH and pOH

Postby Kaileigh Yang 2I » Sun Dec 03, 2017 12:29 am

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
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Re: pH and pOH

Postby Jesus Rodriguez 1J » Sun Dec 03, 2017 10:35 am

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
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Re: pH and pOH

Postby Reyna Alonso 1E » Sun Dec 03, 2017 10:45 am

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
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Re: pH and pOH

Postby Shanmitha Arun 1L » Sun Dec 03, 2017 12:51 pm

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

https://www.youtube.com/watch?v=eoM1nzYFy8k

Wayland Leung
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Re: pH and pOH

Postby Wayland Leung » Sun Dec 03, 2017 4:57 pm

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

Dylan Davisson 2B
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Re: pH and pOH

Postby Dylan Davisson 2B » Sun Dec 03, 2017 5:59 pm

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
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Re: pH and pOH

Postby 605011646 » Sun Dec 03, 2017 6:13 pm

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

Kristina Nguyen 1C
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Re: pH and pOH

Postby Kristina Nguyen 1C » Sun Dec 03, 2017 6:24 pm

The p in pH will stand for potential, potential hydrogen

Chloe Blume 1F
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Re: pH and pOH

Postby Chloe Blume 1F » Sun Dec 03, 2017 6:46 pm

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

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

Re: pH and pOH

Postby Kennedy Moore 1D » Sun Dec 03, 2017 7:00 pm

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


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