A sample of PET polymer (C1OH8O4) contains 30% molecules with molecular mass 20,000 g/mol, 40% with molecular mass 30,000 g/mol and 30% with molecular mass 60,000 g/mol. Compute for the degree of polymerization. Use C = 12.01 g/mol, H = 1.01 g/mol, O = 16.00 g/mol. * %3D
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