Moderators: Chem_Mod, Chem_Admin

405404782 Gabriel Rigole 4F
Posts: 56
Joined: Sat Aug 17, 2019 12:18 am


Postby 405404782 Gabriel Rigole 4F » Sun Dec 01, 2019 7:42 pm

Can some one please remind me the PH formula and where it comes from?

Anish Patel 4B
Posts: 59
Joined: Thu Jul 11, 2019 12:17 am

Re: PH

Postby Anish Patel 4B » Sun Dec 01, 2019 7:44 pm

To calculate pH, you take the negative log of the concentration of hydronium.

Ashley Kao 1H
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Re: PH

Postby Ashley Kao 1H » Sun Dec 01, 2019 7:50 pm

The pH formula is equal to -log base 10 of the Hydrogen ion concentration. However, I am not sure how the equation was derived. I believe that it has something to do with the fact that if there are more hydrogen atoms, the molecule will have more protons and electrons and is thus more acidic.

Maria Poblete 2C
Posts: 102
Joined: Wed Sep 18, 2019 12:15 am

Re: PH

Postby Maria Poblete 2C » Sun Dec 01, 2019 7:51 pm

To add onto this, a more visual representation is this:
p[H] = -log10[H3O+]

So, for example, if [H3O+] = 1.0 * 10-7 mol/L, the pH would equal 7.

Posts: 50
Joined: Wed Sep 18, 2019 12:19 am

Re: PH

Postby sbottomley3a » Sun Dec 01, 2019 7:52 pm

pH = -log[H3O+]

pH is a measure of the amount of hydrogen ions in the solution! A pH of 1 to 6.9 is acidic, 7 is neutral, and 7.1 to 14 is basic.

Mitchell Koss 4G
Posts: 128
Joined: Sat Jul 20, 2019 12:17 am

Re: PH

Postby Mitchell Koss 4G » Mon Dec 02, 2019 6:33 pm

Also remember that there is pH and pOH

Return to “Calculating the pH of Salt Solutions”

Who is online

Users browsing this forum: No registered users and 1 guest