How do you dilute a solution effectively?

To dilute a solution effectively, you can add more solvent (such as water) to decrease the concentration of the solute. This can be done by carefully measuring the amounts of solute and solvent and mixing them thoroughly. The final concentration can be calculated using the formula C1V1 C2V2, where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.