Molecular mass is a measure of mass and molecular weight is a measure of force acting on the molecular mass. A more correct term for both molecular weight and molecular mass, as they are used in chemistry, would be "relative molecular mass".
Molecular weight definition, the average weight of a molecule of an element or compound measured in units once based on the weight of one hydrogen atom taken as the standard or on 1/16 (0.0625) the weight of an oxygen atom, but after 1961 based on 1/12 (0.083) the weight of the carbon-12 atom; the sum of the atomic weights of all the atoms in a molecule.
Definition of molecular weight : the average mass of a molecule of a compound compared to ¹/₁₂ the mass of carbon 12 and calculated as the sum of the atomic weights of the constituent atoms Examples of molecular weight in a Sentence
Relative molecular mass or molecular weight is the mass of a molecule. It is calculated as the sum of the relative atomic masses of each constituent element multiplied by the number of atoms of that element in the molecular formula .
Define molecular weight. molecular weight synonyms, molecular weight pronunciation, molecular weight translation, English dictionary definition of molecular weight. n. The sum of the atomic weights of all the atoms in a molecule. Also called relative molecular mass . n the former name for relative molecular mass n.
Molecular mass is also called molecular weight. Because the mass is relative to carbon-12, it's more correct to call the value "relative molecular mass". A related term is molar mass, which is the mass of 1 mol of a sample.
molecular weight n. The sum of the atomic weights of all the atoms in a molecule. Also called relative molecular mass. molecular weight n (Chemistry) the former name for relative molecular mass molec′ular weight′ n. the average weight of a molecule of an element or compound measured in units based on 1/12 the weight of the carbon-12 atom; the sum of ...
equivalent weight the amount of substance that combines with or displaces 8.0 g of oxygen (or 1.008 g of hydrogen), usually expressed in grams; for acid/base reactions, one equivalent donates or receives a mole of protons and the equivalent weight is the ratio of the molecular weight to the number of protons involved in the reaction. For oxidation-reduction reactions, one equivalent donates or ...
www.merriam-webster.com/dictionary/gram molecular weight
Gram molecular weight definition is - the mass of one mole of a compound equal in grams to the molecular weight —called also gram-molecule. the mass of one mole of a compound equal in grams to the molecular weight —called also gram-molecule…
Molecular weight (M.W.) is an older term for what is now more correctly called the relative molar mass (M r). This is a dimensionless quantity (i.e., a pure number, without units) equal to the molar mass divided by the molar mass constant. Molecular mass The ...