Liquids have a few physical properties that are based on their ability to move around and the fact that gravity makes them take the shape of their container:
Surface Tension: The ability of a liquid to occupy the smallest surface area possible through cohesion and adhesion. There are materials that can lower surface tension of materials known as surfactants (such as soap or detergent).
Adhesion: The attraction of a liquid to different types of materials.
Cohesion: The attraction of a liquid to itself.
Viscosity: The ability to resist flow.
For aqueous solutions (dissolved solids) we convert concentration to moles to do stoichiometry (since stoichiometry is done on a per mole basis):
(Molarity * Volume in liters) = moles