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Chemistry - Biomolecules Question with Solution | TestHub

ChemistryBiomoleculesMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasysingle choice

What is the polydispersity index of polymer if the mass average molecular mass & number average molecular mass of a polymer are respectively 40,000 and 30,000?

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Answer:

Solution:

Average number molecular weight $\bar{M_{n}} = 30,000$
Average mass molecular weight $\bar{M_{w}} = 40,000$
Polydispersity index (PDI) $= \frac{\bar{M_{w}}}{\bar{M_{n}}} = \frac{40,000}{30,000} = 1.33$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:BiomoleculesSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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