6C.11

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Sophia B 3G
Posts: 103
Joined: Fri Sep 24, 2021 6:13 am

6C.11

Postby Sophia B 3G » Tue Nov 30, 2021 6:55 pm

Can anyone explain why (a) and (b) say acetic acid is the weaker acid? Is it due to the methyl group? Thanks!

Katie Shi 1F
Posts: 105
Joined: Fri Sep 24, 2021 6:35 am
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Re: 6C.11

Postby Katie Shi 1F » Wed Dec 01, 2021 1:59 pm

In part a, trichloroacetic acid is stronger due to the more electronegative Cl atoms surrounding the central C versus H atoms in acetic acid. The more electronegative the atoms present in a molecule, the stronger the acid. In part b, formic acid is stronger as is does not have a methyl group, making the O-H bond weaker and easier to break.

Sophia B 3G
Posts: 103
Joined: Fri Sep 24, 2021 6:13 am

Re: 6C.11

Postby Sophia B 3G » Wed Dec 01, 2021 4:54 pm

Katie Shi 1F wrote:In part a, trichloroacetic acid is stronger due to the more electronegative Cl atoms surrounding the central C versus H atoms in acetic acid. The more electronegative the atoms present in a molecule, the stronger the acid. In part b, formic acid is stronger as is does not have a methyl group, making the O-H bond weaker and easier to break.

Thank you so much!


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