Strong vs Weak

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405289292
Posts: 52
Joined: Thu Oct 03, 2019 12:16 am

Strong vs Weak

Postby 405289292 » Mon Dec 02, 2019 5:16 pm

What is the best way to identify what would make a strong/weak acid or strong/weak base based solely on what we see

NRobbins_1K
Posts: 54
Joined: Sat Aug 17, 2019 12:15 am

Re: Strong vs Weak

Postby NRobbins_1K » Mon Dec 02, 2019 5:22 pm

The simplest way to tell that an acid/base is weak is if you are given an eq. constant. This automatically means it is weak because it is not 100% dissociated. Other easy ways include seeing a carboxylic acid group CH3COOH, which indicates an organic/weak acid.

Ryan Yee 1J
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: Strong vs Weak

Postby Ryan Yee 1J » Mon Dec 02, 2019 7:04 pm

HCl, HNO3, H2SO4, HBr, HI, HClO4, HClO3 are all the strong acids, and strong bases are most of the group one and two elements bound with hydroxide molecules. Alternatively, if you are given a pKa for an acid/base then it is likely weak, as this means that it does not fully dissociate in water and cannot be labeled strong.


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