On the mutual solubility of ethyl acetate and water
If you want to investigate the mutual solubility of ethyl acetate in water, it is one end of chemical exploration.

Ethyl acetate has unique chemical properties. Its molecular structure has its own characteristics and contains functional groups such as ester groups. Looking at its mutual solubility in water, it is not completely compatible. Because the polarity of ethyl acetate molecules is weak, while water molecules are strongly polar molecules. According to the principle of similar miscibility, polar phase is easy to dissolve, and the polarity difference between the two makes the solubility of ethyl acetate in water limited.

Under normal temperature and pressure, ethyl acetate is mixed with water and left to stand for a while, showing the appearance of stratification. The upper layer is ethyl acetate, and the lower layer is aqueous phase, which shows that the mutual solubility of the two is not good. Although some ethyl acetate molecules can be dispersed in water, the amount is small. Changes in temperature also affect their mutual solubility. When the temperature increases, the thermal motion of the molecule intensifies, and the solubility of ethyl acetate in water may increase slightly. But in general, ethyl acetate and water are not miscible in any ratio.

The microscopic force between ethyl acetate molecules and water molecules is mainly van der Waals force. Compared with the hydrogen bond between water molecules, this force is weaker and it is difficult to cause the two to mix fully. Therefore, under normal conditions, the mutual solubility of ethyl acetate in water is limited miscibility and not completely miscible.