Avogadro Number Calculator | Convert Moles to Particles (6.022 x 10^23)

If you are in search of how to convert mass to moles, then you can use this online free Avogadro number calculator by Chemical Tweak. This is part of our wide range of comprehensive collection of Chemical Engineering Calculators designed to make complex calculations easy.

How to Use Avogadro’s Number Calculator

1. Enter the mass of the substance (in grams).
2. Provide the molar mass (grams per mole).
3. The calculator will show the number of moles and particles.

What Is Avogadro’s Number?

Avogadro’s number, also referred to as Avogadro’s constant, is the number of particles (such as atoms, molecules, ions, or electrons) present in one mole of a substance. Its value is 6.02214076 × 10²³ mol⁻¹

Formulas

• Moles = Mass ÷ Molar Mass
• Particles = Moles × Avogadro’s Number (6.022 × 10²³)

Along with Avogadro’s number, mole calculations often start with mass. You can check it out using our Grams to Moles calculator

Example: Water (H₂O)

Let’s say you have 18 grams of water.
The molar mass of water is approximately 18.015 g/mol.

Step 1: Calculate Moles
Moles=Mass / Molar Mass
=18/18.015 ≈ 0.999 mol

Step 2: Calculate Number of Particles

Particles = Moles×Avogadro’s Number

=0.999×6.022×10^23 ≈ 6.02×10^23 molecules

= 0.999 * 6.02210^23 = 6.02* 10^23 molecules

How do you convert molecules to moles?

To convert molecules to moles, use: $$n = \frac{\text{Number of particles}}{N_A}$$n = number of moles Nₐ = Avogadro’s number = $6.022 \times 10^{23}$6.022×1023

Divide the number of molecules by Avogadro’s number.

Example: In a green hydrogen plant, a gas analyser detects
$1.2044 \times 10^{24}$1.2044×1024 molecules of hydrogen (H₂​) produced during a batch cycle. Calculate the number of moles of hydrogen produced.

Previously, we have posted different tools for chemical engineers, like Reynolds Number Calculator. Do check them also.

FAQ (Mole to particles calculator)