Homework Answers
Mn is 250,000
The number of repeat units is 3406 so each monomer is 1703 so mass of each repeat unit is 250000/1703= 146.8
Now one unit is styrene with MW 105 so the other should be propylene with mass 42.
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An alternating copolymer is known to have a number-average molecular weight of 250,000 g/mol and a...
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The number-average molecular weight of a poly(styrene-butadlene) alternating copolymer Is 1352000 g/mol. For each molecule of...
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a) compute the repeat unit molecular weight of polystyrene b) compute the number-average molecular weight for...
a) compute the repeat unit molecular weight of
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(1 point) Determine the degree of polymerization of polypropylene with a number-average molecular weight of 845000...
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calculate the number average molecular weight of a
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4 (20 Points) Calculate the number-average molecular weight and the weight average molecular weight of a...
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a) compute the repeat unit molecular weight of
polystyrene
b) compute the number-average molecular weight for
polystyrene for which the degree of polymerization is 26,000.
54 (a) Compute the repeat unit molecular weight of polystyrene. (b) Compute the number-average molecular weight for a polystyrene for which the degree of polymerization is 26,000.
(1 point) Determine the degree of polymerization of polypropylene with a number-average molecular weight of 845000 g/mol Degree of polymerization =
calculate the number average molecular weight of a
copolymer
erm Remmaining Time 13:27:41 Calculate the number-average molecular weight of a copolymer of butadiene and dimethylsilaxane in which 1/5 of the repeat units are butadiene, and the rest are dimethylsilacane. Assume the number-average degree of polymerization is 101.500. 8.01E6 amu 9.53E6 amu 7.12E6 amu O 6.66E6 amu Cuit & Save Back Question Menu SUbmit Assgnment
4 (20 Points) Calculate the number-average molecular weight and the weight average molecular weight of a polymer sample made of polystyrene with a repeat unit of (CH2- CH(CHs)) and composed of two types of chains. 60 percent of the chains have a degree of polymerization of 7,000 and the rest 50,000. Carbon has an atomic weight of 12 g/mol and hydrogen is 1 g/mol.
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