PH from pKa

Moderators: Chem_Mod, Chem_Admin

Post Reply
Arushi Somani 3E
Posts: 44
Joined: Fri Sep 29, 2023 9:36 am

PH from pKa

Postby Arushi Somani 3E » Fri Feb 02, 2024 3:20 am

What is the process of finding the pH from the PKa?
Top
anoushkap1
Posts: 42
Joined: Wed Nov 15, 2023 9:23 am
Been upvoted: 1 time

Re: PH from pKa

Postby anoushkap1 » Fri Feb 02, 2024 3:26 am

The first step to calculating pH from pKa is converting the pKa to Ka using the formula pKa= -logKa. Then, using the formula for Ka, solve for the concentration of H3O+. Finally, use the formula pH= -log[H3O+] to solve for the pH.
Top
Jose-Joaquin Garcia 1K
Posts: 48
Joined: Mon Nov 13, 2023 8:29 am

Re: PH from pKa

Postby Jose-Joaquin Garcia 1K » Fri Feb 02, 2024 5:25 pm

Just get rid of the -log to solve for Ka and then solve for [H3O+] and take the negative log of that answer. So pKa to Ka to [H3O+] and finally pH.
Top
Post Reply

Return to “Calculating pH or pOH for Strong & Weak Acids & Bases”

Who is online

Users browsing this forum: No registered users and 3 guests