91影视

Carboxylic acids are typically weak acids. They partially dissociate in water, producing a relatively small concentration of hydrogen ions (H鈦�) and leaving the majority of the acid molecules intact.

To show the ionization of CH鈧僀H鈧侰OOH (propanoic acid) in water, we need to write a balanced equation. The reaction involves the transfer of a proton (H鈦�) from the carboxylic acid to a water molecule, forming a hydronium ion (H鈧僌鈦�) and a carboxylate ion. The ionization equation for propanoic acid (CH鈧僀H鈧侰OOH) in water is: \[ CH_{3}CH_{2}COOH \ + \ H_{2}O \ \rightleftharpoons \ CH_{3}CH_{2}COO^{-} \ + \ H_{3}O^{+} \] This equation shows that propanoic acid (CH鈧僀H鈧侰OOH) reacts with water (H鈧侽) and reaches an equilibrium with the conjugate base CH鈧僀H鈧侰OO鈦� and the hydronium ion H鈧僌鈦�. The double arrows (\(\rightleftharpoons\)) indicate a state of equilibrium, where the forward and reverse reactions occur at the same rate, typical of weak acids in water.