In an aqueous solution of CH3COCH3 (acetone), the solute particles are simply the acetone molecules themselves, as acetone is a covalent compound that does not dissociate into ions in water.
The solute particles present in an aqueous solution of CH3COCH3, also known as acetone, are simply the acetone molecules themselves. Acetone is a covalent compound and does not dissociate into ions when dissolved in water. Therefore, in the solution, we have CH3COCH3 (aq) with no separation into ions.
Unlike ionic compounds such as NaCl which separate into Na+ and Cl- ions in solution, covalent compounds like acetone dissolve in water by forming intermolecular interactions with water without dissociation. As an example, a 1 M aqueous solution of acetone will contain 1 M of acetone molecules (CH3COCH3).