You prepare a solution by dissolving 58.5g of LiCL in 250ml of solution. If the solution is further diluted by having a total volume of 750ml, what is the concentration of the final solution?
To find the concentration of the final solution, you need to determine the amount of solute (LiCL) in the solution and divide it by the total volume of the solution.
First, let's calculate the amount of LiCL in the initial solution:
Amount of LiCL = Mass / Molar mass
The molar mass of LiCL is the sum of the atomic masses of lithium (Li) and chlorine (Cl):
Molar mass of LiCL = (Atomic mass of Li) + (Atomic mass of Cl)
Molar mass of LiCL = (6.94 g/mol) + (35.45 g/mol)
Molar mass of LiCL = 42.39 g/mol
Now we can calculate the amount of LiCL in the initial solution:
Amount of LiCL = 58.5 g / 42.39 g/mol
Amount of LiCL = 1.38 mol
Next, we need to calculate the concentration of the initial solution:
Concentration = Amount of LiCL / Volume of Solution
Concentration = 1.38 mol / 250 mL
Concentration = 0.00552 mol/mL
Finally, let's find the concentration of the final solution after it is diluted to a total volume of 750 mL. Since the amount of solute remains the same in this case, the concentration will also remain the same:
Concentration of final solution = 0.00552 mol/mL