Consider a random copolymerization of A and B monomers, where the mole fraction of monomer A...
Consider a random copolymerization of A and B monomers, where the mole fraction of monomer A is 0.3. What is the mole fraction of B that is being incorporated into the polymer at high monomer conversions?
Homework Answers
Since total mole fraction is one .
hence mole fraction of B= 1-0.3= 0.7
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Consider a random copolymerization of A and B monomers, where
the mole fraction of monomer A...
A pair of monomers M1 and M2 undergoing radical chain copolymerization were found to have reactivity...
A pair of monomers M1 and M2 undergoing radical chain copolymerization were found to have reactivity ratios r1 = 0.1 and r2 = 10.0. What is the composition of the initial copolymer that is formed when the monomer feed contains (a) an equimolar amount of M1 and M2 and (b) 2 moles of M1 per mole of M2? Show how you arrived at your answers.
ensation polymerization Make models of a new monomer using the provided paper clips. Your new monomer...
ensation polymerization Make models of a new monomer using the provided paper clips. Your new monomer unit will be made from a combination of one regular paper clip and one colored paperclip. Make 4 total monomers, where each monomer unit represents a mole of that monomer. 2. Consider your monomer unit having two chemical parts, the regular clip with a molar mass of 244.33 g/mol and the colored paper clip with a molar mass of 18.02 g/mol. What is the...
4,5,&6 please Connect the 4 monomers you made into a polymer, however you must lose a...
4,5,&6 please
Connect the 4 monomers you made into a polymer, however you must lose a colored paperclip with each connection as you hook the monomers together. Each colored paperclip lost in the process represents a mole of water molecules. 3. What is the molar mass of the 'lost' molecule? 2 x 18.02 - 36.04 x3 = 108.12 g /mol 4. How many 'moles' of polymer paperclip chain did you form? How many 'moles' of water colored paperclips did you...
Please explain why the answers are: 9. B 11. D 12. B The copolymerization of vinyl...
Please explain why the answers are:
9. B
11. D
12. B
The copolymerization of vinyl chloride and vinylidine chloride by free radical catalysis produces a polymer used in food wrap. Which structural unit would appear in this polymer? At which of the indicated positions would the bromine radical react at the fastest rate? 1 2 3 4 Which is the correct representation of the polymer formed by free-radical polymerization of this monomer? What product is formed in this reaction?
11. One-dimensional polymer, consider a polymer formed by connecting N disc-shaped molecules into a one-dimensional chain....
11. One-dimensional polymer, consider a polymer formed by connecting N disc-shaped molecules into a one-dimensional chain. Each molecule can align along either its long axis (of length 2a) or short axis (length a). The energy of the monomer aligned along its shorter axis is higher by e, that is, the total energy is H = 0, where U is the number of monomers standing up. (a) Calculate the partition function, Z(T, N), of the polymer. (b) Find the relative probabilities...
A liquid containing four components, A, B, C and D, with 0.3 mole fraction each of...
A liquid containing four components, A, B, C and D, with 0.3 mole fraction each of A, B and C, is to be continuously fractionated to give a top product of 0.9 mole fraction A and 0.1 mole fraction B. The bottoms are to contain not more than 0.05 mole fraction A. (i) Determine the composition of distillate and bottom liquid stream (ii) Determine the composition of the distillate and bottom liquid stream (iii) Determine the minimum reflux ratio required...
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol...
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or linear chains? d. What is fivg, the average number...
Consider a scenario where you know the following information. Fraction Moved 0.70 0.20 Fraction Arrested 0.20...
Consider a scenario where you know the following information. Fraction Moved 0.70 0.20 Fraction Arrested 0.20 0.30 MTO Treatment MTO Control Consider running potentially three sets of linear regressions. Your first regression is looking at moving, a binary outcome. What is the coefficient on a dummy variable for being in the treatment group (or beta from the equation below)? moving Bo +BTreatment,
What is the mole fraction, X, of solute and the molality, m (or b), for an...
What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is 18.0% NaOH by mass? X = .066 Incorrect m = 3.96 m Incorrect
Consider events A and B such that P(A)=0.3,P(B|A)=0.9,P(B|A¯¯¯)=0.4. Calculate P(A|B¯¯). Give your answer as a fraction...
Consider events A and B such that P(A)=0.3,P(B|A)=0.9,P(B|A¯¯¯)=0.4. Calculate P(A|B¯¯). Give your answer as a fraction in its simplest form.
ensation polymerization Make models of a new monomer using the provided paper clips. Your new monomer unit will be made from a combination of one regular paper clip and one colored paperclip. Make 4 total monomers, where each monomer unit represents a mole of that monomer. 2. Consider your monomer unit having two chemical parts, the regular clip with a molar mass of 244.33 g/mol and the colored paper clip with a molar mass of 18.02 g/mol. What is the...
4,5,&6 please
Connect the 4 monomers you made into a polymer, however you must lose a colored paperclip with each connection as you hook the monomers together. Each colored paperclip lost in the process represents a mole of water molecules. 3. What is the molar mass of the 'lost' molecule? 2 x 18.02 - 36.04 x3 = 108.12 g /mol 4. How many 'moles' of polymer paperclip chain did you form? How many 'moles' of water colored paperclips did you...
Please explain why the answers are:
9. B
11. D
12. B
The copolymerization of vinyl chloride and vinylidine chloride by free radical catalysis produces a polymer used in food wrap. Which structural unit would appear in this polymer? At which of the indicated positions would the bromine radical react at the fastest rate? 1 2 3 4 Which is the correct representation of the polymer formed by free-radical polymerization of this monomer? What product is formed in this reaction?
11. One-dimensional polymer, consider a polymer formed by connecting N disc-shaped molecules into a one-dimensional chain. Each molecule can align along either its long axis (of length 2a) or short axis (length a). The energy of the monomer aligned along its shorter axis is higher by e, that is, the total energy is H = 0, where U is the number of monomers standing up. (a) Calculate the partition function, Z(T, N), of the polymer. (b) Find the relative probabilities...
2. During the acid catalyzed polymerization of terephthalic acid and ethylene glycol, some fraction of methanol (CH-OH) is incorporated, but no more ester bonds can be formed. a. Based on the above, what is the extent of reaction, p? b. How does fav determine whether a linear or network polymer is formed as p nears 1? c. Why do you believe the polymer in this reaction will be a gel-network or linear chains? d. What is fivg, the average number...
Consider a scenario where you know the following information. Fraction Moved 0.70 0.20 Fraction Arrested 0.20 0.30 MTO Treatment MTO Control Consider running potentially three sets of linear regressions. Your first regression is looking at moving, a binary outcome. What is the coefficient on a dummy variable for being in the treatment group (or beta from the equation below)? moving Bo +BTreatment,
What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is 18.0% NaOH by mass? X = .066 Incorrect m = 3.96 m Incorrect
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