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www.thoughtco.com/definition-of-molecular-weight-605369

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".

www.dictionary.com/browse/molecular-weight

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.

www.merriam-webster.com/dictionary/molecular weight

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

en.wikipedia.org/wiki/Molecular_mass

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 .

www.thefreedictionary.com/molecular+weight

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.

www.thoughtco.com/molecular-mass-definition-606382

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.

www.thefreedictionary.com/Weight-average+molecular+weight

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 ...

medical-dictionary.thefreedictionary.com/molecular+weight

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…

en.wikipedia.org/wiki/Molar_mass

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 ...