solubillity depends on which factors?

Answer 1

Generally, solubility depends on the:
1) nature of the solutes and solvents themselves (soluble? insoluble? bond types?)
2) temperature (also pressure if gases are involved)
3) amount present of the solute and solvent (concentrations)

Answer 2

Sovent, temperature, solute. Could you be less specific. Like salt and water, solubility doesn't change much with temperature, it only takes more time to combine at lower temperatures. Sugar and water, temperature will allow you to super saturate the water with sugar.