1. What is the Moles, Concentration and Volume Formula?

The formula n = c × V calculates the number of moles of a substance in a solution, where concentration (c) is measured in mol/dm³ and volume (V) in dm³. This is a fundamental calculation in GCSE Chemistry for quantitative analysis.

2. How Does the Calculator Work?

The calculator uses the moles formula:

Where:

• \( n \) — Number of moles (mol)
• \( c \) — Concentration (mol/dm³)
• \( V \) — Volume (dm³)

Explanation: This formula allows you to calculate the amount of substance in moles when you know the concentration of the solution and the volume used.

3. Importance of Moles Calculation

Details: Calculating moles is essential for stoichiometric calculations, preparing solutions of specific concentrations, and determining reactant quantities in chemical reactions.

4. Using the Calculator

Tips: Enter concentration in mol/dm³ and volume in dm³. Both values must be positive numbers. The calculator will compute the number of moles.

5. Frequently Asked Questions (FAQ)

Q1: What if my volume is in cm³ instead of dm³?
A: Convert cm³ to dm³ by dividing by 1000 (since 1 dm³ = 1000 cm³).

Q2: Can I use this for gases as well as solutions?
A: This formula is specifically for solutions. For gases, use the ideal gas equation or molar volume calculations.

Q3: What are typical concentration values in GCSE Chemistry?
A: Common concentrations range from 0.1 mol/dm³ to 2.0 mol/dm³ for most laboratory solutions.

Q4: How accurate should my measurements be?
A: For GCSE practical work, measurements should be to an appropriate degree of precision, typically 2-3 significant figures.

Q5: What other calculations can I do with moles?
A: Moles can be used to calculate mass (using molar mass), number of particles (using Avogadro's constant), and gas volumes.