An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? Xi 0.05 0.15 0.21 0.28 0.18 0.10 0.03 Wi 0.02 0.08 0.17 0.29 0.23 0.16 0.05 O a. Polypropylene with a monomer molecular weight of 42.08 g/mol O b. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol O c. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol O d. Polycarbonate with a monomer molecular weight of 61.0168 g/mol O e. Polystyrene with a monomer molecular weight of 104.15 g/mol

QUESTION 26 A pleasant-smelling liquid having a boiling point of 101°C was subjected to IR Spectroscopy to determine the functional groups present and partially determine its nomenclature based on the molecular formula given. What are the functional groups present based on the major infrared absorptions? (Select Possible Answers) 100 CH1202 '2876 2977 1194 liquid film sample 1737 1166 4000 3000 2000 1500 1000 500 wavenumber cm Ester Alkene Alkane Alkyne Alcohol Carboxylic Acid Ketone Aldehyde Transmittance %T

Which of the statements below apply to the following reaction: -OH + HNR' H -NR' + H20 H R R Choose all that apply. Select at least one answer to see feedback. Da condensation reaction an esterification reaction the formation of an amide linkage the formation of an ether linkage an addition reaction

How would you do number 8 a-f