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Question 8 O out of 10 points A polymer is being considered as a potential material for a vascular graft. After a particular batch has been made, someone give you the following fractional distribution data and asks you to calculate the polydispersent. (Give answer to 3 significant figures) Number of Molecules 12 20 38 20 23 20 86 Mi (kg/mol) 0.05 0.15 0.21 0.28 0.18 0.10 0.03 Question 9 O out of 10 points A polymer is being considered as a potential material for a vascular graft. After a particular batch has been made, someone give you the following fractional distribution data and asks you to calculate the weight-average molecular weight. (Give answer to 3 significant figures in g/mol) Number of Molecules 12 20 38 20 23 20 86 Mi (kg/mol) 0.05 0.15 0.21 0.28 0.18 0.10 0.03