Homework Answers
none of these .
""the ratio of commonly used to represents the molecular size distribution which is given by (1+p).""
extent of reaction is quality that measure the extent in which the reaction proceeds . the extent of reactions has units of time.
dispersity is a measures of the heterogeneity of sizes of molecules or particles of mixture .
degree of polymerization is the numbers of monomeric units in a macromolecules or polymer .
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What does the ratio of number to weight average degree of polymerization for a bifunctional system...
(1 point) Determine the degree of polymerization of polypropylene with a number-average molecular weight of 845000...
(1 point) Determine the degree of polymerization of polypropylene with a number-average molecular weight of 845000 g/mol Degree of polymerization =
Find the degree of polymerization for polyethylene with an number average molecular weight of 500,000 g/mol
Find the degree of polymerization for polyethylene with an number average molecular weight of 500,000 g/mol.
Find the degree of polymerization for polyethylene with an number average molecular weight of 500,000 g/mol
Find the degree of polymerization for polyethylene with an number average molecular weight of 500,000 g/mol
Find the degree of polymerization for polyethylene with an number average molecular weight of 500,000 g/mol
Find the degree of polymerization for polyethylene with an number average molecular weight of 500,000 g/mol
Molecular weight data for some polymer are tabulated. Determine: a) The number-average molecular weight b) The...
Molecular weight data for some polymer are tabulated.
Determine:
a) The number-average molecular weight
b) The weight-average molecular weight
c) What is the number-average degree of polymerization for this
polymer?
d) What is the weight-average degree of polymerization for this
polymer?
Side note: Please
consider the monomer C3H6
Molecular weight data for some polymer are tabulated. Determine: The number-average molecular weight The weight-average molecular weight What is the number-average degree of polymerization for this polymer? What is the weight-average degree...
It is desired to prepare polyester with the number average molecular weight, Mn 5000 g/mol by...
It is desired to prepare polyester with the number average molecular weight, Mn 5000 g/mol by reacting of 1 mol butane-1,4 diol (HO-CH-CH2-CH2-CH2-OH) with 1 mol of adipic acid (HOOC-CH2-CH2-CH2-CH2-COOH) (a) Write chemical equation illustrating synthesis of the polyester. (b) Calculate the value of the monomer conversion at which the reaction should be stopped to obtain this polymer, assuming perfect stoichiometric balance. What would be polydispersity index for the polymer obtained? (c) Assuming that 0.5 mol % of the diol...
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
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.
7. (19 points) The number average molecular weight of polypropylene is 1,5 Calculate the degree of...
7. (19 points) The number average molecular weight of polypropylene is 1,5 Calculate the degree of polymerization. 00,000 g/mol.
3. What is the no. average degree of polymerization (DP) of each of the following polymers...
3. What is the no. average degree of polymerization (DP) of each of the following polymers with M, 254,000? но th-chatti itomaan -O-CH2-CH2-0-C- ooo į
this is the full table Problem 5 (10pts) The following table lists molecular weight data for a polyethylene material. Compute (a) the number-average molecular weight, and (b) the degree of poly...
this is the full table
Problem 5 (10pts) The following table lists molecular weight data for a polyethylene material. Compute (a) the number-average molecular weight, and (b) the degree of polymerization. Molecular Weight Range (g/mol) 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
Problem 5 (10pts) The following table lists molecular weight data for a polyethylene material. Compute (a) the number-average molecular weight, and (b) the degree of polymerization. Molecular Weight Range (g/mol) 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
(1 point) Determine the degree of polymerization of polypropylene with a number-average molecular weight of 845000 g/mol Degree of polymerization =
Molecular weight data for some polymer are tabulated.
Determine:
a) The number-average molecular weight
b) The weight-average molecular weight
c) What is the number-average degree of polymerization for this
polymer?
d) What is the weight-average degree of polymerization for this
polymer?
Side note: Please
consider the monomer C3H6
Molecular weight data for some polymer are tabulated. Determine: The number-average molecular weight The weight-average molecular weight What is the number-average degree of polymerization for this polymer? What is the weight-average degree...
It is desired to prepare polyester with the number average molecular weight, Mn 5000 g/mol by reacting of 1 mol butane-1,4 diol (HO-CH-CH2-CH2-CH2-OH) with 1 mol of adipic acid (HOOC-CH2-CH2-CH2-CH2-COOH) (a) Write chemical equation illustrating synthesis of the polyester. (b) Calculate the value of the monomer conversion at which the reaction should be stopped to obtain this polymer, assuming perfect stoichiometric balance. What would be polydispersity index for the polymer obtained? (c) Assuming that 0.5 mol % of the diol...
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.
7. (19 points) The number average molecular weight of polypropylene is 1,5 Calculate the degree of polymerization. 00,000 g/mol.
3. What is the no. average degree of polymerization (DP) of each of the following polymers with M, 254,000? но th-chatti itomaan -O-CH2-CH2-0-C- ooo į
this is the full table
Problem 5 (10pts) The following table lists molecular weight data for a polyethylene material. Compute (a) the number-average molecular weight, and (b) the degree of polymerization. Molecular Weight Range (g/mol) 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
Problem 5 (10pts) The following table lists molecular weight data for a polyethylene material. Compute (a) the number-average molecular weight, and (b) the degree of polymerization. Molecular Weight Range (g/mol) 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
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