A solvent's own acidic or basic properties impose a limit on the range of acid-base strengths that can exist within it. Nonaqueous Solvents - Acid–base reaction - Britannica
) reduce the electrostatic force between oppositely charged ions, promoting dissociation. Conversely, low-dielectric solvents (like benzene) favor the formation of , where the cation and anion remain closely associated, making the acid or base appear weaker. Acids and Bases: Solvent Effects on Acid-Base S...
) well, making ammonia a weak base in water; in non-polar solvents like hexane, the lack of such stabilization can make ammonia act as a stronger base. A solvent's own acidic or basic properties impose