The key difference between dilution and concentration is that dilution refers to the addition of more solvent whereas concentration refers to the removal of the solvent.
The concepts of dilution and concentration are very significant in the study of solutions in chemistry. Consequently, the amount of solute in a solvent decides the properties of a solution and this amount remaining the same; we can make a solution “diluted” or “concentrated” by adding solvent and removing some of the solvent from the solution. Thus, in chemical analysis, we need to change the concentration of a solution often in different applications.
