Strength of an acid/base

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haleyervin7
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

Strength of an acid/base

Postby haleyervin7 » Thu Dec 06, 2018 6:50 pm

How do we tell which weak acid or base is strongest when given several different compounds? (Like homework problem 12.49)
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Esther Ahn 4I
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: Strength of an acid/base

Postby Esther Ahn 4I » Thu Dec 06, 2018 7:06 pm

You can determine the strength of an acid or base by finding the pKb and pKa of that base or acid. The smaller the pKb, the stronger the base. The larger the pKa, the stronger the corresponding conjugate base.
Also, the weaker the bond, the stronger the acid. Hope this helps!
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LG2019
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: Strength of an acid/base

Postby LG2019 » Thu Dec 06, 2018 8:53 pm

But to calculate pKa and pKb we need acidity and basicity constants. Will we be given those on the test?
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