ABSTRACT
A solution is a homogeneous mixture of two or more pure compounds or elements; homogeneous is defined as mixing at the atomic, ionic, or molecular level. Dilution involves changing the concentration of a specific solution by addition of extra solvent. A certain amount of the initial, more concentrated, solution is diluted with extra solvent to produce a specific amount of a final, less concentrated, solution. Ionic compounds break up into individual ions upon formation of an aqueous solution. The molarity (M) of ionic compounds can also be expressed as molarities of the individual ions. The concentration of liquid solutions is very often expressed in units of Molarity. Enclosing the identity of the solute in brackets is a symbol for “concentration of” the specific solute usually in molarity. The measurement allows a calculation for the original amount of moles or mass or concentration of the unknown reactant.
