How do you calculate the concentration of a diluted solution?

To calculate the concentration of a diluted solution, use the formula: C1V1 C2V2. This formula states that the initial concentration (C1) multiplied by the initial volume (V1) is equal to the final concentration (C2) multiplied by the final volume (V2). By rearranging the formula, you can solve for the final concentration (C2) by dividing C1V1 by V2.