Consider the concentration of the final solution made in two volumetric flasks. In flask A the liquid was filled to a level above the mark. In flask B the liquid was filled to a level below the mark. Describe if the final concentration of the diluted specie will be higher or lower in each case and explain why
Flask A, more water, less concd.
Flas B, less water, .////
In order to determine if the final concentration of the diluted species will be higher or lower in each case, we need to understand how dilution works.
Dilution is a process of reducing the concentration of a solute in a solution by adding more solvent. It involves adding a specific volume of a concentrated solution to a larger volume of solvent, resulting in a larger total volume of solution but with a lower concentration.
Now, let's analyze each case separately:
Case A: Flask A was filled above the mark
If the liquid in Flask A is filled above the mark, it means that more solvent has been added than required. This will result in a greater volume of final solution than intended.
Since the amount of solute remains the same (assuming it was accurately measured), but the volume of the solution is larger, the concentration of the diluted species in Flask A will be lower. This is because the same amount of solute is now spread out over a larger volume, resulting in a less concentrated solution.
Case B: Flask B was filled below the mark
If the liquid in Flask B is filled below the mark, it means that less solvent has been added than required. This will result in a smaller volume of final solution than intended.
Again, assuming the amount of solute remains the same, but the volume of the solution is smaller, the concentration of the diluted species in Flask B will be higher. This is because the same amount of solute is now concentrated in a smaller volume, resulting in a more concentrated solution.
In summary, the final concentration of the diluted species will be lower in Case A (liquid filled above the mark) and higher in Case B (liquid filled below the mark). This is because dilution involves keeping the amount of solute constant while varying the volume of the solvent, resulting in different concentrations of the final solution.