How do you calculate final concentration?

To calculate the final concentration of a solution, you can use the formula:

[ \text{C}_1 \times \text{V}_1 = \text{C}_2 \times \text{V}_2 ]

where ( \text{C}_1 ) is the initial concentration, ( \text{V}_1 ) is the initial volume, ( \text{C}_2 ) is the final concentration, and ( \text{V}_2 ) is the final volume. If you know the initial concentration and volume and the final volume, you can rearrange the formula to solve for ( \text{C}_2 ):

[ \text{C}_2 = \frac{\text{C}_1 \times \text{V}_1}{\text{V}_2} ].