ka &kb

Moderators: Chem_Mod, Chem_Admin

Posts: 107
Joined: Fri Aug 09, 2019 12:17 am

ka &kb

Postby josmit_1D » Sun Jan 26, 2020 2:53 pm

how do Ka and Kb relate to pOH and pH?

Tracy Tolentino_2E
Posts: 140
Joined: Sat Sep 07, 2019 12:17 am

Re: ka &kb

Postby Tracy Tolentino_2E » Sun Jan 26, 2020 2:57 pm

Ka and Kb relate to pH and pOH from Kw.
Kw = Ka * Kb
With that, Kw = [H30+][OH-]
pH = -log[H30+] while pOH=-log[OH-]

Adam Kramer 1A
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

Re: ka &kb

Postby Adam Kramer 1A » Sun Jan 26, 2020 2:59 pm

Using Ka and Kb, you can find the concentration of hydronium ions and hydroxide ions. Using this information, you can find the pOH by taking the negative log of the concentration of Hydroxide ions, or the pH by taking the negative log of hydronium ions.

Return to “Equilibrium Constants & Calculating Concentrations”

Who is online

Users browsing this forum: No registered users and 1 guest