## PH

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

### PH

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

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

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

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.

sbottomley3a
Posts: 50
Joined: Wed Sep 18, 2019 12:19 am

### Re: PH

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

Also remember that there is pH and pOH