how to find itintal concetation and final concetration

Answer 1

To find the initial concentration of a substance, you need to know the amount of the substance added to the solution and the volume of the solution. The initial concentration can be calculated using the formula:

Initial Concentration (C1) = amount of substance (moles) / volume of solution (liters)

For example, if you add 0.1 moles of a substance to a 0.5 L solution:

C1 = 0.1 moles / 0.5 L = 0.2 mol/L

To find the final concentration of a substance, you need to account for any changes that occur during a reaction or dilution. The final concentration can be calculated using the formula:

Final Concentration (C2) = Initial Concentration (C1) * (Initial Volume / Final Volume)

For example, if you have an initial concentration of 0.2 mol/L and you dilute the solution to a final volume of 1 L:

C2 = 0.2 mol/L * (0.5 L / 1 L) = 0.1 mol/L

Therefore, the final concentration after dilution would be 0.1 mol/L.