Answer Happy

a) (1 point) As mentioned in Question 2, methyl methacrylate (sketched at right) H undergoes linear addition polymerization to form a common polymer. Assuming the polymerization runs to completion, how many kilograms of this molecule are needed to produce 625 kg of the polymer of part g)? Answer: b) Data on the molecular weight distribution of a specimen of the polymer from part g) are tabulated at right. Compute the following properties of this specimen. Assume that the answers will be valid to three significant figures. Show your work below. (2 points) Number-average molecular weight: (2 points) Weight-average molecular weight: (1 points) weight of the repeat unit: (1 points) degree of polymerization: (1 points) polydispersity index: H 0 CH3 10,000 - 20,000 20,000-30,000 30,000 - 40,000 40,000 - 50,000 C=0 CH3 molecular weight range [g mol ¹] 12.0% 28.0% 34.0% 26.0%