Avogadro's constant

noun

1. L.  NA. the number of atoms or molecules in a mole of a substance, equal to 6.022 52 × 10 ²³

Example Sentences

The change also means that the constants on which the new definitions rely — the charge of the electron for the ampere, Avogadro’s constant for the mole, Boltzmann’s constant for the kelvin and Planck’s constant for the kilogram — are from today fixed values with zero uncertainty.

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Crucially, Avogadro’s constant and the Planck constant are intertwined in the laws of physics.

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Having measured Avogadro’s constant, Dr. Bettin could derive the Planck constant.

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One way to calculate Planck’s constant involves determining Avogadro’s constant, the number of particles in a given amount of a substance.

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This allows them to calculate a value for Avogadro’s constant, which the researchers convert into a value for Planck’s constant.

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