Solution Concentration Calculation

Given:
- Initial solution volume: 250 ml
- Mass of CaCO3 in the initial solution: 2.5 grams
- Dilution volume: 10 ml
- Final solution volume after dilution: 1 liter (1000 ml)

1. Determine the concentration of the initial solution:
- The concentration of a solution is typically expressed in terms of molarity (moles per liter) or mass per unit volume (grams per liter). In this case, we will calculate the concentration in terms of grams per liter.
- To calculate the concentration, divide the mass of the solute (CaCO3) by the volume of the solution in liters:
Concentration = Mass of CaCO3 / Volume of solution (in liters)
= 2.5 grams / 0.25 liters (since 250 ml = 0.25 liters)
= 10 grams per liter

2. Calculate the dilution factor:
- The dilution factor is the ratio of the final volume to the initial volume of the solution. In this case, the dilution factor is:
Dilution factor = Final volume / Initial volume
= 1000 ml / 10 ml
= 100

3. Determine the final concentration of the diluted solution:
- The final concentration can be calculated by dividing the initial concentration by the dilution factor:
Final concentration = Initial concentration / Dilution factor
= 10 grams per liter / 100
= 0.1 grams per liter

4. Interpretation:
- The concentration of the resultant solution after dilution is 0.1 grams per liter.

In summary, starting with a calcium carbonate solution containing 2.5 grams of CaCO3 in 250 ml, diluting 10 ml of this solution to a final volume of 1 liter results in a final solution with a concentration of 0.1 grams per liter. Dilution decreases the concentration of the solution while increasing its volume.