1. What is the Dilution Principle?

The dilution principle states that the number of moles remains constant during dilution processes. This fundamental concept in chemistry ensures that while concentration changes, the actual amount of substance (in moles) stays the same.

2. How Does the Calculator Work?

The calculator uses the dilution equation:

Where:

• \( n_i \) — Initial moles (mol)
• \( n_f \) — Final moles (mol)

Explanation: This equation demonstrates the conservation of moles principle, where the number of moles before and after dilution remains unchanged.

3. Importance of Mole Conservation

Details: Understanding mole conservation is crucial for accurate solution preparation, concentration calculations, and various laboratory procedures involving dilution processes.

4. Using the Calculator

Tips: Enter the initial number of moles in mol. The value must be valid (greater than 0).

5. Frequently Asked Questions (FAQ)

Q1: Why do moles remain constant during dilution?
A: Dilution only adds solvent, not additional solute, so the total amount of substance (number of moles) remains unchanged.

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

Q3: When is this principle applicable?
A: This principle applies to all dilution processes where no chemical reaction occurs between solute and solvent.

Q4: Are there exceptions to this rule?
A: The principle holds true for ideal solutions where there are no significant volume changes upon mixing.

Q5: How accurate is this calculation?
A: The calculation is mathematically exact for the conservation of moles principle in dilution processes.