Why is acetone miscible with water

The solute is the dissolved substance while the dissolving substance is the solvent. If the solute is liquid, there should be no distinguishable layers between solute and solvent. Lab Tip: put a dark sheet of paper behind test-tubes when checking for solubility.

The formation of a solution is a 3 step process that can be represented by an enthalpy diagram: Breaking of solvent-solvent interactions Breaking of solute-solute interactions Formation of solute-solvent interactions.

Steps 1 and 2 are endothermic processes because energy is required to break up molecular interactions these interactions could be hydrogen bonds, dipole-dipole interactions, dispersion forces, etc. The enthalpy change, and thus, the outcome of the solution process depends on the attraction of solute to solvent. There are no polar C-H or O-H bonds on acetone; therefore, it cannot form hydrogen bonds with other acetone molecules.

The intramolecular forces consist of dispersion forces. Water, on the other hand, has two polar O-H bonds. The slightly positive charge on each hydrogen can attract slightly negative oxygen atoms on other water molecules, forming hydrogen bonds. If acetone is added to water, acetone would completely dissolve. One of the most common uses of acetone is as an additive in gasoline. Acetone is a good solvent to be used to thin gasoline, allowing it to diffuse easily in the engine, improving fuel efficiency.

Acetone is also a good solvent to use in cosmetic processes like chemical face peels. Acetone is organic and non-toxic making it safe to use in personal care, or as an additive in cosmetic products like lotions and creams. Acetone is very potent and can dissolve both organic and inorganic substance.

Why is acetone and diethyl ether miscible, but not water and diethyl ether? Ask Question. Asked 6 years, 9 months ago. Active 6 years, 9 months ago. Viewed 29k times. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Brinn Belyea Brinn Belyea 3, 4 4 gold badges 20 20 silver badges 35 35 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.