Amount-of-substance fraction

{
  "id": "MLC-T-CHM-000511",
  "term": "Amount-of-substance fraction",
  "field": "Chemistry",
  "definition": "A dimensionless quantity that expresses the ratio of the amount of substance of a particular component to the total amount of substance of all components in a mixture. This is also known as the mole fraction. The sum of the amount-of-substance fractions for all components in a given mixture always equals unity.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "amount fraction"
  ],
  "references": [
    "Green Book, 2nd ed., p. 41 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/amount-of-substance-fraction/"
}