Mole fraction

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Notion

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Science and technology

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What Wikipedia says

In chemistry, the mole fraction or molar fraction, also called mole proportion or molar proportion, is a quantity defined as the ratio between the amount of a constituent substance, ni (expressed in unit of moles, symbol mol), and the total amount of all constituents in a mixture, ntot (also expressed in moles):

Excerpt from the Wikipedia article “Mole fraction”, under the CC BY-SA 4.0 license. Read the article on Wikipedia