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  4. Carboxylic acids readily dissolve in aqueous sodium bicarbonate, liberating carbon dioxide. Which one of the following is correct?

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Q. Carboxylic acids readily dissolve in aqueous sodium bicarbonate, liberating carbon dioxide. Which one of the following is correct?

ManipalManipal 2008Aldehydes Ketones and Carboxylic Acids

Solution:

$ RCOOH+NaHC{{O}_{3}}\rightleftharpoons RCOONa+{{H}_{2}}O $
$ +C{{O}_{2}} $ Or $ RCOOH+HCO_{3}^{-}\rightleftharpoons RCO{{O}^{-}}+{{H}_{2}}O+C{{O}_{2}} $
Conjugate base, $ RCO{{O}^{-}} $ is more stable. That is why equilibrium shirts in the forward direction.