What is the difference between the resonance | vedclass

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(B) The resonance structures of the carboxylate ion $(CH_3CH_2COO^{-})$ are equivalent because the negative charge is delocalized over two oxygen atom

Vedclass · Accepted Answer

The resonance structures of $CH_3CH_2COO^{-}$ are equivalent,whereas those of $CH_3COOH$ are non-equivalent.

Vedclass · Answer

(B) The resonance structures of the carboxylate ion $(CH_3CH_2COO^{-})$ are equivalent because the negative charge is delocalized over two oxygen atoms,making both resonance contributors identical in energy and stability.In contrast,the resonance structures of the carboxylic acid $(CH_3COOH)$ are non-equivalent because one structure is neutral while the other involves charge separation (a positive charge on oxygen and a negative charge on oxygen),which makes the second structure significantly less stable.

What is the difference between the resonance structures of $CH_3CH_2COO^{-}$ and $CH_3COOH$?

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