Calculations related to Avogadro's law. Enter known values (e.g. volume or number of moles) and select which value you want to find out (e.g. molar volume) and we'll show you step-by-step how to transform basic formula and reach your result in desired units.

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This online calculator is currently under heavy development. It may or it may NOT work correctly.

You CAN try to use it. You CAN even get the proper results.

However, please VERIFY all results on your own, as the level of completion of this item is NOT CONFIRMED.

Feel free to send any ideas and comments !

Choose a scenario that best fits your needs |

Number of moles (n) | => | |

Volume (V) | <= | |

Molar volume (Vm) | <= |

Volume (V) | Show source$22.41\ \left[dm^3\right]$ | |

Molar volume (Vm) | Show source$22.41\ \left[\frac{dm^3}{mol}\right]$ |

Used formula | Show source$n = V / Vm$ | ||||||||||

Result | Show source$1$ | ||||||||||

Numerical result | Show source$1\ \left[mol\right]$ | ||||||||||

Result step by step |
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Numerical result step by step |
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Units normalization | Show source$1\ \left[mol\right]$ |

**Avogadro's law**states that under the same physical conditions, i.e. at the same temperature and pressure,**equal volumes**of different gases contain**the same number of particles**(moles):

$\frac{V_1}{n_1} =\frac{V_2}{n_2}$where:

**$V_1$**- volume of first gas,

**$V_2$**- volume of second gas,

**$n_1$**- number of moles of first gas,

**$n_2$**- number of moles of second gas.

- Equivalently, we can say that
**volume of gas**is**directly proportional to the number of particles**(moles).

$V \propto n$**$V$**- volume of gas,

**$n$**- number of moles of gas

- The Avogadra law is a
**empirical**, i.e. it was formulated on the basis of experiments. - The name of the law comes from its discoverer
**Amadeo Avogadro**. - At the time Avogadro formulated his law,
**atomistic theory**has not yet been proven and widely accepted. For this reason, we sometimes talk about**Avogadro's hypothesis**. - More general law covering also Avogadro's law is Clapeyron's equation. It cobines not only the number of moles and volume, but also
**temperature**and**pressure**in one equation.

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