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Relative molar mass

Term · Chemistry · MLC-T-CHM-010150

The ratio of the molar mass of a substance to the molar mass of a reference substance, typically 1/12 of the molar mass of carbon-12. This dimensionless quantity is numerically equivalent to the molecular weight or formula weight of a compound. It is calculated by summing the relative atomic masses of all atoms in the chemical formula.

Table 1. Record
IdentifierMLC-T-CHM-010150
FieldChemistry
SubjectPhysical and Biophysical Chemistry
ReferencesGreen Book, 2nd ed., p. 41 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)
Record as JSON
{
  "id": "MLC-T-CHM-010150",
  "term": "Relative molar mass",
  "field": "Chemistry",
  "definition": "The ratio of the molar mass of a substance to the molar mass of a reference substance, typically 1/12 of the molar mass of carbon-12. This dimensionless quantity is numerically equivalent to the molecular weight or formula weight of a compound. It is calculated by summing the relative atomic masses of all atoms in the chemical formula.",
  "subject": "Physical and Biophysical Chemistry",
  "references": [
    "Green Book, 2nd ed., p. 41 (https://goldbook.iupac.org/files/pdf/green_book_2ed.pdf)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/relative-molar-mass/"
}

Record 10,792 of 13,676 in Chemistry terminology (MLC-0109). Request the full dataset.