Noun
molecular mass (plural molecular masses)
(chemistry) The mass of an individual molecule of an element or compound.
A theoretical average molecular mass can be calculated using the relative atomic masses found on a typical periodic table, since there is likely to be a statistical distribution of atoms representing the isotopes throughout the molecule. Source: Internet
Due to the low molecular mass and hence high thermal velocity of hydrogen these engines are at least twice as fuel efficient as chemical engines, even after including the weight of the reactor. Source: Internet
For example, the mean relative molecular mass of natural water is about 18.015, therefore, one mole of water has a mass of about 18.015 grams. Source: Internet
Hence, the relative molecular mass of a gas can be calculated from the mass of sample of known volume. Source: Internet
Properties Chemical formula and molecular weight IP 3 is an organic molecule with a molecular mass of 420.10 g/mol. Source: Internet
Since the atomic mass unit (amu) is defined as 1/12 of the mass of the 12 C atom, it follows that the molar mass of a substance, measured in grams per mole, is numerically equal to its mean atomic or molecular mass measured in amu. Source: Internet