Final answer:
The concentration formula is a key concept in chemistry represented by C = n/V, which allows calculation of the concentration of a solution in terms of molarity (mol/L). It's critical for stoichiometry and dilutions, with the dilution equation being C1V1 = C2V2 to find new concentrations or volumes after dilution.
Step-by-step explanation:
The concentration formula is used in chemistry to determine the concentration of a solution, which is a measure of the quantity of solute that is dissolved in a specific quantity of solvent or solution. The amount of solute (in moles) divided by the volume of solution (in liters) gives the concentration in molarity (mol/L). A common formula is C = n/V, where C represents the concentration, n is moles of solute, and V is the volume of the solution in liters.
Using the concentration as a conversion factor is especially useful in stoichiometry problems. The dilution equation is another key concept where the concentration formula is applied to calculate new concentrations or volumes when a solution is diluted. The equation is represented as C1V1 = C2V2, where C1 and C2 are the concentrations before and after dilution, and V1 and V2 are the corresponding volumes.