Molecular mass

Molecular mass
Term	Molecular mass
Short definition	molecular mass - (pronounced) (muh-LEH-kyoo-ler mas) The sum of the atomic masses of all the atoms in a molecule, based on a scale where the atomic masses of hydrogen, carbon, nitrogen, and oxygen are 1, 12, 14, and 16, respectively. For example, the molecular mass of water, which has two hydrogen atoms and one oxygen atom, is 18 (i.
Type	Cancer terms
Specialty	Oncology
Language	English
Source	NCI
Comments

molecular mass - (pronounced) (muh-LEH-kyoo-ler mas) The sum of the atomic masses of all the atoms in a molecule, based on a scale where the atomic masses of hydrogen, carbon, nitrogen, and oxygen are 1, 12, 14, and 16, respectively. For example, the molecular mass of water, which has two hydrogen atoms and one oxygen atom, is 18 (i. e. 2 + 16). Also called molecular weight

External links

• Medical encyclopedia article on Molecular mass
• Wikipedia's article - Molecular mass

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