Dilution Equation and Concentration Calculation
What is dilution equation?
Here given, V1 = 5.0ml, M1 = .20M, V2 = 10.0ml. We have to find M2. For determining a missing dilution equation value, where M1 and M2 are the molarities of the solutions, expressed in mol/L or M, and V1 and V2 are the volumes of the solutions.
The concentration of the solution is .10M
By applying V1M1 = V2M2, we can find the concentration of the solution. By substituting values, (5.0 ml)(0.20 M) = (10.0 ml)(x M), x = (5.0)(0.20)/10.0, x = 0.10 M. The fact that one begins with 100. ml and ends with 3.0 ml has no bearing on the final concentration. It would influence the total number of moles of HCl present but not the concentration. Therefore the concentration of solution is .10M.
When dealing with dilution of solutions, it is important to understand the dilution equation in order to calculate the final concentration of the solution. The formula for dilution equation is V1M1 = V2M2, where V1 and M1 represent the initial volume and molarity of the solution, and V2 and M2 represent the final volume and molarity of the solution after dilution.
In this case, a student has 100 ml of 0.20 M HCl solution. By taking 5.0 ml of this solution and adding it to 10.0 ml of water, and then taking 3.0 ml of this new solution for an experiment, the student needs to determine the concentration of this final solution.
By applying the dilution equation and substituting the given values, we can calculate that the concentration of the final solution is 0.10 M. This means that the final solution after dilution has a concentration of 0.10 mol/L.
It is important to note that the total volume of the solution may change during dilution, but the concentration is determined by the ratio of solute to solvent. Understanding the dilution equation allows for accurate calculations of final concentrations in various dilution scenarios.