Concentration
The amount of solute dissolved in a given volume of a solution
Molarity
The number of moles of solute per litre of solution
Standard Solution
A solution whose concentration is accurately known
Primary Standard
A substance that can be obtained in a stable, pure and soluble solid form to give a solution of accurately known concentration
Titration
A laboratory procedure where a measured volume of one solution is added to a known volume of another solution until the reaction is complete