At what condition is a solution considered saturated?

A solution is considered saturated when it reaches a point where no more solute can dissolve in the solvent at a given temperature and pressure. At this state, the concentration of the solute is at its maximum for the particular solvent and conditions being used.

If additional solute is added once saturation is reached, it will remain undissolved in the mixture. This indicates the dynamic equilibrium where the rate of dissolution of the solute equals the rate at which the solute precipitates out, meaning the solution is unable to incorporate any more solute molecules.

The conditions related to temperature or the volume of the liquid do not inherently define saturation. Saturation is specifically tied to the solute's ability to dissolve in the solvent given the current conditions. Thus, the defining characteristic is simply that no additional solute can be incorporated into the solution at that point.