Avogadro's Law (V₁/n₁ = V₂/n₂)
At constant T, P: volume scales with number of moles.
Result
V₂
44.8000
22.4 × 2 / 1 = 44.8000.
- V₁22.4
- n₁1 mol
- n₂2 mol
- V₂44.800000
Step-by-step
- V/n constant at fixed T, P.
- V₂ = V₁ × n₂/n₁ = 44.8000.
How to use this calculator
- Enter V₁, n₁, n₂.
- Read V₂.
About this calculator
Avogadro's Law (1811): at the same T and P, equal volumes of any gas contain equal numbers of molecules. 22.414 L at STP = 1 mole = 6.022 × 10²³ molecules. Doubling moles doubles volume. Foundation of stoichiometry — the same gas-volume ratio works regardless of identity. Avogadro's number 6.022 × 10²³ is now defined exactly (post-2019 SI redefinition).
Frequently asked
22.414 L per mole at 273.15 K and 101.325 kPa.
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