The non-aqueous solvent posses strong tendency to level the effects of acid and bases. Leveling refers to the effect of solvent on properties of acid and bases.
The consideration of level effect in non-aqueous media is important because a weak acid in aqueous medium behaves as a strong acid in non-aqueous solution.
For example:
CH3COOH is a weak acid in water. But it is strong acid in liquid ammonia.
CH3COOH (weak acid) + H2O = CH3COO- + H3O+(strong acid)
CH3COOH(strong acid)+ NH3 = CH3COO- + NH4+(weak acid)
why do chemist have to consider the level effect in nonaquelus chemical reactions