Chemistry Forum

Depends also on dissociation degree. A mixture of hydrochloric and acetic acid will expell the acetic acid by protonation. If I add 0.1 HCl and 0.1 CH3COONa it says pH 7 that is wrong. Result should be 2,88. If you input: HCl c=0.1 pKa=-5.9 sodium_acetate c=0.1 pKb=9.25 You get 2.9 But how did you ...

ChenBeier wrote: ↑Wed Feb 01, 2023 11:23 am Do you have a link for this.

I'm refering to: [https://www.webqc.org/phsolver.php]

But knowing the component concentration (and its constants) seems possible to compute the pH. This seems how the webqc's solver works, but I don't know of any method to build the equations needed. Approximations like the Henderson-Hasselbalch exist for conjugate buffers, but maybe anything similar e...

I know about the tool at [https://www.webqc.org/phsolver.php], but I was wondering how the values are computed.
Is there any generic formula to compute the pH of a mixture of different acids and bases that are not conjugate?