Strong Acid/Base Concentration vs. Weak Acid/Base Concentration

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Daisylookinland
Posts: 46
Joined: Fri Sep 28, 2018 12:28 am

Strong Acid/Base Concentration vs. Weak Acid/Base Concentration

Postby Daisylookinland » Tue Mar 12, 2019 11:29 am

Can someone explain the difference in calculating concentrations for a strong acid or base vs. calculating concentration for a weak acid or base?

Lily Benitez 2G
Posts: 63
Joined: Fri Sep 28, 2018 12:29 am

Re: Strong Acid/Base Concentration vs. Weak Acid/Base Concentration

Postby Lily Benitez 2G » Tue Mar 12, 2019 12:13 pm

Any acid that dissociates 100% into ions is a strong acid. If it does not dissociate 100%, it is a weak acid. Same goes for strong and weak bases.

A De Castro 14B 2H
Posts: 75
Joined: Fri Sep 28, 2018 12:29 am

Re: Strong Acid/Base Concentration vs. Weak Acid/Base Concentration

Postby A De Castro 14B 2H » Tue Mar 12, 2019 12:36 pm

For strong acids, the concentration of H+ ions generally equals the concentration of the strong acid. For strong bases, the concentration of OH- ions generally equals the concentration of the strong base. However, for weak acids and bases, their respective concentrations of H+ and OH- ions don't equal their own concentrations because they only partially dissociate. This usually necessitates the usage of ICE tables and pKa or Ka values.


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