pH

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jlinwashington1B
Posts: 65
Joined: Fri Sep 28, 2018 12:22 am

pH

Postby jlinwashington1B » Wed Jan 16, 2019 9:19 pm

Does anyone know how to solve pH?

Chloe Qiao 4C
Posts: 65
Joined: Fri Sep 28, 2018 12:27 am

Re: pH

Postby Chloe Qiao 4C » Wed Jan 16, 2019 9:42 pm

The pH of a number is the negative log of that number. For example, pH(10^-1)=-log(10^-1)=1

Samantha Ito 2E
Posts: 64
Joined: Fri Sep 28, 2018 12:29 am

Re: pH

Postby Samantha Ito 2E » Wed Jan 16, 2019 9:59 pm

The pH of a solution is the -log of the hydronium ion concentration: pH = -log[H3O+]

Felicia1E
Posts: 31
Joined: Fri Sep 28, 2018 12:22 am

Re: pH

Postby Felicia1E » Wed Jan 16, 2019 10:56 pm

Also if pOH is given and it asks for you to give the pH, know that pKw= pH + pOH. This is derived from the equation where Kw= [H+][OH-].

Eric Quach 1C
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

Re: pH

Postby Eric Quach 1C » Wed Jan 16, 2019 11:32 pm

To find pH simply take the -log{H30+}.

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

Re: pH

Postby melodyzaki2E » Wed Jan 16, 2019 11:48 pm

and then if you're given pH and you need to find the H30+ concentration you just do the antilog: 10^(-pH)


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