which one of the following best describes the difference between molar mass and formula weight? a) formula weights are measured in grams per mole, while molar masses are measured in atomic mass units. b) a formula weight is the mass of one molecule or formula unit while a molar mass is the mass of one mole of molecules or formula units. c) molar masses only describe the mass of ionic compounds, while formula weights can describe any compound. d) there is no difference between molar masses and formula weights.



Answer :

The following best describes the difference between molar mass and formula weight is a formula weight is the mass of one molecule or formula unit while molar mass  is the mass of one mole of molecules or formula units.

A formula mass is the sum of all masses of atom present in empirical formula. molecular mass is the mass of one mole of molecule. formula weight base on empirical formula while molecular mass is depend on molecule.

Thus, The following best describes the difference between molar mass and formula weight is a formula weight is the mass of one molecule or formula unit while molar mass  is the mass of one mole of molecules or formula units.

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