Which of the following is the correct way to create a more dilute solution from an existing solution?

• A. Add more solvent to the solution.
• B. Heat the solution to evaporate the solvent.
• C. Remove some solvent from the solution.
• D. Add more solute to the solution.

Answer: (A)

Verified step by step guidance

1. Understand the concept of dilution: Dilution involves decreasing the concentration of solute in a solution by increasing the amount of solvent without changing the amount of solute.
2. Recall the formula for dilution: \(C_1 V_1 = C_2 V_2\), where \(C_1\) and \(V_1\) are the initial concentration and volume, and \(C_2\) and \(V_2\) are the final concentration and volume after dilution.
3. Analyze each option: Adding more solvent increases the volume \(V_2\) while keeping the amount of solute constant, which lowers the concentration \(C_2\).
4. Consider the other options: Heating to evaporate solvent decreases volume and increases concentration; removing solvent also decreases volume and increases concentration; adding more solute increases concentration.
5. Conclude that the correct method to create a more dilute solution is to add more solvent to the existing solution.