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how to calculate the average molecular weight. EXAMPLECalculate the average molecular weight of air. To get the number average molecular weight you divide the total weight of the sample by the total number of the molecules.
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Calculate the total mass for each element. The number-average probability of a given mass being present is. First list each element present in the molecule.
To get the number average molecular weight you divide the total weight of the sample by the total number of the molecules.
Calculate the total mass for each element. 242 Weight Average Molecular Weight. It gives the average of the molecular masses of the individual macromolecules. The molecular weight of the polymer is measured by using viscometer and the molecular weight obtained by this technique is called viscosity average molecular weight.
