Question

In: Chemistry

what is the degree of polymerization (DP) of LDPE having an average molecular weight (mass) of...

what is the degree of polymerization (DP) of LDPE having an average molecular weight (mass) of 27,980?

Solutions

Expert Solution

average molecular weight (mass) = 27,980

repeated unit molecular weight = 2 x C + 4 x H

                                                 = 2 x 12 + 4 x 1

                                                 = 28 g/mol

degree of polymerization (DP) = average molecular weight / repeated unit molar mass

                                                 = 27,980 / 28

                                                 = 999

degree of polymerization (DP) = 999


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