Number-average molecular mass of a polymer is determined by:

Mass-average molecular mass of a polymer is determined by:

Mass-average molecular mass of a polymer is determined by:

Average molecular weight of a polymer can be determined by

The mass average molecular mass and number average molecular mass of a polymer are respectively 40,000 and 30,000. The poly dispersity index of polymer will be

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 ?

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 ?

Number average molecular mass of a polymer that contains 15 molecules with each of mass, 8,000 and 15 molecules with each of mas 80,000 is