Relationship between acids and bases

Moderators: Chem_Mod, Chem_Admin

105561735
Posts: 82
Joined: Sat Oct 09, 2021 5:04 am

Relationship between acids and bases

Postby 105561735 » Mon Mar 18, 2024 12:10 am

Does a high pka value equate to a strong cojugate base?

Stephanie_manasyan
Posts: 134
Joined: Fri Sep 29, 2023 10:57 am

Re: Relationship between acids and bases

Postby Stephanie_manasyan » Mon Mar 18, 2024 12:13 am

Hi! A larger pKa for the conjugate acid indicates a stronger base. For indicating base strength directly we use pKb, in which case a smaller value is more basic. Hope this helps!

Isabelle Huerta 2I
Posts: 81
Joined: Fri Sep 29, 2023 12:15 pm

Re: Relationship between acids and bases

Postby Isabelle Huerta 2I » Mon Mar 18, 2024 3:33 am

Hi, no it doesn't! A higher pKa value will mean that we have a weaker acid/stronger conjugate base. The pKa value is going to be the -log(Ka) ((Ka being the acid dissociation constant)) and it will measure the strength of the acid. A higher pKa value is an indicator that the acid is less likely to donate a proton. I hope this helped!

405696752
Posts: 79
Joined: Sat Sep 30, 2023 8:20 am

Re: Relationship between acids and bases

Postby 405696752 » Mon Mar 18, 2024 9:56 am

Hii, not quite a higher pKa just meanest that we have a weak acid and a stronger conjugated base. therefore it will most likely donate a proton


Return to “Calculating the pH of Salt Solutions”

Who is online

Users browsing this forum: No registered users and 10 guests