pH formula?

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Saleha_Mian_3E
Posts: 32
Joined: Fri Sep 28, 2018 12:25 am

pH formula?

Postby Saleha_Mian_3E » Mon Dec 03, 2018 10:14 pm

What is the pH formula? and do we need to know how it was derived?

Sierra Cheslick 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:27 am

Re: pH formula?

Postby Sierra Cheslick 2B » Mon Dec 03, 2018 10:24 pm

The pH formula is -log[H+]. I believe we would need to know how to derive it.

305127455
Posts: 30
Joined: Fri Sep 28, 2018 12:16 am

Re: pH formula?

Postby 305127455 » Tue Dec 04, 2018 8:29 pm

I don't think we need to know how to derive it since pH is just an invented representation of proton concentration. For acid it's (-log[H+]), for base it's 14 - (-log[OH-])

Jonathan Cheng 3C
Posts: 30
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 1 time

Re: pH formula?

Postby Jonathan Cheng 3C » Thu Dec 06, 2018 5:08 pm

pH = - log[H+] while pOH is either 14 - pH or -log[OH-]. We do not need to know how these formulas were derived.

Henri_de_Guzman_3L
Posts: 88
Joined: Fri Sep 28, 2018 12:25 am

Re: pH formula?

Postby Henri_de_Guzman_3L » Thu Dec 06, 2018 8:01 pm

We don't need to know how they're derived although reading through the textbook I feel it is helpful in understanding how they work.

Krista Mercado 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: pH formula?

Postby Krista Mercado 1B » Sat Dec 08, 2018 5:11 pm

The pH formula is pH = -log[H+]. I don't think we need to know how it is derived.

Lisa Werner 2F
Posts: 72
Joined: Fri Sep 28, 2018 12:17 am

Re: pH formula?

Postby Lisa Werner 2F » Sat Dec 08, 2018 5:25 pm

I think you also need to know that pH + pOH = 14.

Karina Koo 2H
Posts: 49
Joined: Fri Sep 28, 2018 12:24 am

Re: pH formula?

Postby Karina Koo 2H » Sun Dec 09, 2018 10:01 am

@305127455 wait shouldnt pOH be 14-(-log[H+]) ?


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