👉 Precipitability is a measure of how easily water can be removed from an aqueous solution. It is defined as the ratio of the volume of water that can dissolve in a given amount of solute to the volume of solvent required to completely saturate the solution. For example, if you have a solution made up of salt and water, the precipitability of this mixture would be high because there will be more dissolved salt than water. On the other hand, if you have a solution