Avogadro's Number Calculator
Moles (mol)
Molar Mass (g/mol)
Avogadro's number: 6.022 × 10²³ particles/mol
Avogadro's number (6.022 × 10²³ mol⁻¹) is the number of particles in one mole of any substance, connecting the macroscopic gram scale with the atomic scale.
- 1Particles = Moles × 6.022×10²³
- 2Moles = Mass / Molar mass
- 3Molar mass H₂O = 18.015 g/mol
- 41 mole of any ideal gas at STP = 22.4 litres
36g of water (H₂O)=36/18.015 = 2 moles; 2 × 6.022×10²³ = 1.204×10²⁴ molecules
| Substance | Formula | g/mol |
|---|---|---|
| Water | H₂O | 18.015 |
| Carbon dioxide | CO₂ | 44.010 |
| NaCl | NaCl | 58.440 |
| Oxygen gas | O₂ | 32.000 |
References
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