Weak acids and bases

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Valeria Morales
Posts: 39
Joined: Mon Jan 09, 2023 2:11 am

Weak acids and bases

Postby Valeria Morales » Sun Dec 10, 2023 9:27 pm

Hi, I have an understanding of what makes a strong base and a strong acid, but I have troubling distinguishing the weak acids and weak bases,

606012329
Posts: 38
Joined: Fri Sep 29, 2023 12:29 pm

Re: Weak acids and bases

Postby 606012329 » Sun Dec 10, 2023 9:28 pm

What helped me was memorizing the strong acids list in the textbook. anything else was a weak acid. For bases, i did the same and remembered that strong bases will have a group 1 or group 2 element and an OH

Hansika_Sakshi_2k
Posts: 81
Joined: Fri Sep 29, 2023 11:23 am

Re: Weak acids and bases

Postby Hansika_Sakshi_2k » Sun Dec 10, 2023 9:55 pm

The best way is just memorizing the string acids and bases and then knowing everything else will be weak. I just remembered the main weak ones like NH3.

205957986
Posts: 85
Joined: Fri Sep 29, 2023 11:43 am

Re: Weak acids and bases

Postby 205957986 » Sun Dec 10, 2023 10:10 pm

like everyone else said, i found it helpful to reference the tables that are available in the books in order to differentiate between strong and weak acids/bases :)

Lan Wei 3I
Posts: 82
Joined: Fri Sep 29, 2023 11:18 am

Re: Weak acids and bases

Postby Lan Wei 3I » Sun Dec 10, 2023 10:29 pm

Like everyone else said, memorizing the strong acids and bases will help you determine the weak ones. For acid specifically, I used the mnemonic device "So I Brought No Clean Clothes." I hope that's helpful!

Wenting_2F
Posts: 40
Joined: Fri Sep 29, 2023 10:35 am

Re: Weak acids and bases

Postby Wenting_2F » Sun Dec 10, 2023 10:33 pm

Weak Acids: They partially dissociate in water, producing fewer \( H^+ \) ions. Examples include acetic acid and hydrofluoric acid. They have a higher pH than strong acids and conduct electricity poorly.

Weak Bases: They partially accept protons, producing fewer \( OH^- \) ions. Examples include ammonia and pyridine. They have a lower pH than strong bases and also conduct electricity poorly.

Both weak acids and bases do not fully dissociate in solution, which is the main reason they are considered "weak".


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