The state of malonic acid in water
The taste of things varies from place to place. Malonic acid, when placed in water, changes its state and makes sense.
Malonic acid enters the water, just like a guest to a new house. Its molecules are discrete and gradually melt into the embrace of water. Water is the softest in the world, but it can accommodate all things. Malonic acid molecules are between water molecules, like fish swimming in the abyss, free to shuttle.
Looking at its ionization, malonic acid is weakly acidic. In water, some molecules dissolve ions, carboxyl groups release protons, and embrace water molecules to form hydrated hydrogen ions. This process is not achieved overnight, but a state of dynamic equilibrium. Just as a boat moves on waves, between ups and downs, and finally reaches a state of equilibrium.
Its equilibrium constant represents the difficulty of this equilibrium. The value is established, and the degree of ionization of malonic acid in water can be known. If the constant is small, ionization is not easy, and it mostly exists in the state of molecules in water; if the constant is large, ionization is easier, and there are many ionic states.
Malonic acid in water also has hydrogen bonds with water molecules. Hydrogen bonds, although not strong bonds, play an important role in intermolecular forces. It is like silk threads connected, which makes malonic acid more closely related to water molecules. The existence of this hydrogen bond affects the solubility, boiling point and other physical properties of malonic acid.
As for the reaction energy, malonic acid can react with other substances in water. In case of alkali, the proton changes hands and forms salt and water. The speed of its reaction depends on the factors of temperature and concentration. When the temperature rises, the molecules are active, and the reaction speed increases; if the concentration is high, the collision is frequent, and the reaction is also easy.
Malonic acid in water, the state changes thousands, the ionization is balanced, the hydrogen bond is connected, and the reaction is energetic. Observing its shape, knowing the wonders of physical properties, is the secret of chemistry.