In chemistry, the molar mass is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. However, for historical reasons, molar masses are almost always expressed in g/mol.
As an example, the molar mass of water is approximately: M(H2O) ≈ 18 g·mol−1
Read more about Molar Mass: Molar Masses of Elements, Molar Masses of Compounds, Average Molar Mass of Mixtures, Related Quantities, Precision and Uncertainties, Measurement
Famous quotes containing the word mass:
“... in the happy laughter of a theatre audience one can get the most immediate and numerically impressive guarantee that there is nothing in one’s mind which is not familiar to the mass of persons living at the time.”
—Rebecca West (1892–1983)