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Rachel Lu_dis1H
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Joined: Fri Sep 29, 2017 7:06 am
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Postby Rachel Lu_dis1H » Tue Dec 05, 2017 11:59 pm

The question is "suggest an explanation for the different strengths of (a) acetic acid and trichloroacetic acid; (b) acetic acid and formic acid."
Will we need to memorize what acetic acid and all the other acids are?

Nha Dang 2I
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

Re: 12.53

Postby Nha Dang 2I » Wed Dec 06, 2017 7:45 am

Here's a thread with the explanation of the question: viewtopic.php?t=8795
In terms of memorization of strong acids/bases, I believe we just have to (or it would be helpful to) memorize the common ones, like the "strong six" acids (HCl, HBr, HI, HNO₃, H₂SO₄, HClO₄) and the theme for strong bases which is Group 1&2 Hydroxides/Oxides.

Andrea ORiordan 1L
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Joined: Fri Sep 29, 2017 7:04 am
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Re: 12.53

Postby Andrea ORiordan 1L » Wed Dec 06, 2017 10:28 pm

The main concept for that question is that having more electronegative atoms on an acid makes it stronger-- when a proton is released, the resulting anion is more stable as a result of the electronegative atoms stabilizing the negative charge left by the release of the proton.

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