Calculate the relative molecular weights of the following substances: H2 N2 O2 HF CaBr2

Molecular weight is the mass of one molecule. Numerically equal to molar mass expressed in g / mol. The mass of an atom can be seen in the Periodic Table. Thus, the molecular weight of hydrogen = 2 grams / mol; nitrogen = 28 grams / mol; oxygen = 32 grams / mol; hydrofluoric acid = 20 grams / mol; calcium bromide = 200 grams / mol.



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