ARTICLES

Molecular mass is expressed as the mass of a molecule in unified atomic mass units, while the number average molecular weight is expressed as the total weight of all molecules in a substance, divided by the overall numbe...

www.reference.com/article/difference-between-number-average-molecular-weight-number-average-molecular-mass-a48d7b3eed46b244

The molecular weight of copper is 63.546 multiplied by the number of atoms present in the sample. Copper is an element rather than a compound, so the correct metric to describe its weight is either its atomic weight or i...

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The molecular weight of iron (II) iodide is 309.65 atomic mass units. The molar mass of iron (II) iodide, represented by the chemical formula FeI2, is 309.65 grams per mole. The molecular weight of a compound is determin...

www.reference.com/article/molecular-weight-iron-ii-iodide-3fe2a8efac3f426f

SIMILAR ARTICLES

To convert from molecules to grams, it is necessary to first convert the number of molecules of a substance by dividing by Avogadro's number to find the number of moles, and then multiply the number of moles by the molar...

www.reference.com/science/convert-molecules-grams-50ad3175e4149487

Chemists use the mole unit because, in chemistry, it is often important to speak in terms of number of atoms or molecules rather than in terms of mass or volume. However, it is difficult and inconvenient to directly spea...

www.reference.com/article/chemists-use-mole-3f8587ec7c03caba

The number of milligrams per millimole of a given substance is equivalent to that substance's molar mass. A millimole is one thousandth of a mole, and moles are a measure of the amount of substance, not mass. Therefore, ...

www.reference.com/science/many-milligrams-millimole-34c4172980022ef2

The molecular weight of bromine is about 79.90 atomic mass units. The atomic weight of an element such as bromine is located on the periodic table of elements below the element's symbol. For bromine, the symbol is Br.

www.reference.com/article/molecular-weight-bromine-440fdb01fbe0b548