1. What is Moles Conservation in Dilution?

The principle of moles conservation states that the number of moles of solute remains constant during dilution processes. When a solution is diluted by adding more solvent, the amount of solute (in moles) does not change, only the concentration decreases.

2. How Does the Calculator Work?

The calculator uses the simple conservation principle:

Where:

• \( n_{\text{initial}} \) — Initial moles of solute (mol)
• \( n_{\text{final}} \) — Final moles of solute after dilution (mol)

Explanation: This equation demonstrates that the quantity of solute remains unchanged during dilution, regardless of volume changes.

3. Importance of Moles Conservation

Details: Understanding moles conservation is fundamental in solution preparation, pharmaceutical compounding, laboratory work, and chemical engineering. It ensures accurate calculations when preparing solutions of specific concentrations.

4. Using the Calculator

Tips: Enter the initial moles of solute in mol. The calculator will show that the final moles remain the same after dilution. All values must be valid (moles > 0).

5. Frequently Asked Questions (FAQ)

Q1: Why do moles remain constant during dilution?
A: Dilution only adds solvent, not additional solute. The number of moles of solute remains unchanged because no chemical reaction occurs.

Q2: How does concentration change during dilution?
A: While moles remain constant, concentration decreases because the same amount of solute is distributed in a larger volume of solution.

Q3: What's the relationship between moles and concentration?
A: Concentration = moles/volume. As volume increases during dilution and moles stay constant, concentration decreases proportionally.

Q4: Does this principle apply to all types of solutions?
A: Yes, the conservation of moles applies to all dilution processes for ideal solutions where no chemical interactions occur between solute and solvent.

Q5: How is this different from mass conservation?
A: While mass is also conserved during dilution, working with moles is more useful in chemistry as it relates directly to the number of particles and chemical reactions.