Resonance

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Malia Shitabata 1F
Posts: 127
Joined: Sat Aug 17, 2019 12:17 am

Resonance

Postby Malia Shitabata 1F » Fri Dec 06, 2019 3:28 pm

Resonance spreads the delocalized charge over more atoms and increases stability. Does this mean that if a molecule has resonance it's a weaker atom since the bonds will be more stable and take more energy to break?

Ayushi2011
Posts: 101
Joined: Wed Feb 27, 2019 12:17 am

Re: Resonance

Postby Ayushi2011 » Fri Dec 06, 2019 3:39 pm

I don't think resonance has got to do with strength per se. It is more about stabilizing the atom by delocalising the electrons. it also maintains a constant bond length in the compound.

Malia Shitabata 1F
Posts: 127
Joined: Sat Aug 17, 2019 12:17 am

Re: Resonance

Postby Malia Shitabata 1F » Fri Dec 06, 2019 3:42 pm

So does this increase acidity strength or decrease it?

KaitlynBali_4B
Posts: 51
Joined: Fri Aug 02, 2019 12:16 am

Re: Resonance

Postby KaitlynBali_4B » Sat Dec 07, 2019 2:06 am

Malia Shitabata 3H wrote:So does this increase acidity strength or decrease it?


An acid is a relatively strong acid if its resulting anion is stable. An anion with resonance is stable, and so its acid can be considered to be a strong acid relative to other acids. However, it does not mean that the acid is necessarily a "strong acid". The anion of sulfuric acid is stable because of resonance, and sulfuric acid is known to be a strong acid. However, acetic acid's anion is stable because of resonance, but it is known to be a weak acid: it is a strong acid compare to other weak acids.


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