Equilibrium Amounts For aldehydes and ketones,the keto form is greatly favored at equilibrium. An enantiomer with an enolizable enolizable hydrogens CH: CH CH, H+orOH -a carbons (R)configuration enol (achiral) (S)configuration Copyright 2005 Pearson Prentice Hall,Inc.Equilibrium Amounts ◼For aldehydes and ketones, the keto form is greatly favored at equilibrium. ◼An enantiomer with an enolizable hydrogen can form a racemic mixture