How to Calculate Avogadro
What is Avogadro?
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.
Formula
Particles = Moles × 6.022×10²³ | Moles = Mass / Molar mass | Volume (STP) = Moles × 22.4 L
Step-by-Step Guide
- 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
Worked Examples
Input
36g of water (H₂O)
Result
36/18.015 = 2 moles; 2 × 6.022×10²³ = 1.204×10²⁴ molecules
Frequently Asked Questions
What is Avogadro Calc?
Avogadro\. Use this calculator for accurate, instant results.
How accurate is the Avogadro Calc calculator?
The calculator uses the standard published formula for avogadro calc. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.
What units does the Avogadro Calc calculator use?
This calculator works with litres. You can enter values in the units shown — the calculator handles all conversions internally.
What formula does the Avogadro Calc calculator use?
The core formula is: Particles = Moles × 6.022×10²³. Each step in the calculation is shown so you can verify the result manually.
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