Please show detailed calculations. Thanks in advance!
Homework Answers
The complete step wise calculation is given as below:-
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Please show detailed calculations. Thanks in
advance!
Question 2: Calculate Mn. Mw and polydispersity index of...
Three batches of polystyrene are synthesized separately and combined without further reaction. A) Given the information...
Three batches of polystyrene are synthesized separately and combined without further reaction. A) Given the information in the table below, calculate Mn and Mw for the mixture B) Based on polydispersity index, what type of polymerization method was most likely #used to produce batch A, B and C Batch Weight in Mixture Mn(g/mol) Mw (g/mol) B 20 75 5 500000 250000 10000 500000 375000 60000
Polystyrene can be polymerized from the starting monomer (styrene) pictured below. a. Anionic polymerization is one...
Polystyrene can be polymerized from the starting monomer
(styrene) pictured below.
a. Anionic polymerization is one method of polymerization that
can be used to generate polystyrene from styrene. Explain what type
of initiator should be used for this reaction
and draw an example of a styrene monomer that has reacted with
initiator.
b. Using this anionic polymerization method and a starting
concentration of 1M styrene and 1mM initiator, what degree of
polymerization (Xn) would you expect if you use up...
Hi Can you guys show the detailed mechanism and explanation please. Thanks in advance. TBHP R...
Hi Can you guys show the detailed mechanism and explanation
please. Thanks in advance.
TBHP R OD OH VO(acac), or
Please show detailed arrow-pushing mechanism. Thanks in advance, best regards. OH B) Please provide a mechanism...
Please show detailed arrow-pushing
mechanism.
Thanks in advance, best regards.
OH B) Please provide a mechanism for the below transformation (8 points). NaoMe Y MeOH, Heat MeOH, Heat
please complete both tables and show your calculations thanks mass of the product 2.419 g Équivalent...
please complete both tables and show your calculations
thanks
mass of the product 2.419 g
Équivalent MW(8/mol) Density(g/cm2) Mass (g or ml) 6.6 g mmol Réactants 50 1.02 130.14 Ethyl Acetoacetate 0.38g 1.93 g 12.5 0.88 30.03 paraformaldehyde 25 1.17 77.08 Ammonium acetate 25 ml 18 water Result table Theoretical Experimental Percentage Theoretical MW yield (mmol) yield (mg) yield ( mg ou 253.29 Product ННо O paraformaldehyde NH2OAC EtO OEt H2O A Scheme 3. Hantzsch Ester synthesis under ac
Isotactic Polypropylene (C3H6 MW=42g/mol), a thermo plastic is synthesized using bulk polymerization. For a monodisperse sample...
Isotactic Polypropylene (C3H6 MW=42g/mol), a thermo plastic is
synthesized using bulk polymerization. For a monodisperse sample
(PDI=1) the bigger molecule(higher degree of polymerization)
contain the same total mass of the polymer sample than the smaller
molecules(lower degree of polymerization). For a polydisperse
sample the MW fractions do not contain the same mass.
Flexlife is the capability of polymeric material to withstand
repeated bending without fracture. The Z average MW (Mz) is a
measure of flexlofe as well as the predominance...
1-Calculate the molecular weight of the repeat unit (monomer) for polystyrene (above) (2 marks) 2-Using the...
1-Calculate the molecular weight of the repeat unit (monomer)
for polystyrene (above) (2 marks)
2-Using the table below, calculate the degree of polymerisation
for polystyrene
Molecular weight range (g/mol)
Number fraction,xi
500-1000
0.02
1000-3000
0.13
3000-5000
0.25
5000-10000
0.41
10000-25000
0.15
25000-50000
0.04
3-Which crystal type would be expected for Nickel Oxide (NiO,
Ni2+ ionic radius = 0.069nm, O2- ionic radius
= 0.14nm) (2 marks)
4-In order to save weight, a composite component is to be made
of aligned fibreglass...
please show the detailed answer 16 of 16 What weight of sodium lactate (CH,CHOHCOONa; MW =...
please show the detailed answer
16 of 16 What weight of sodium lactate (CH,CHOHCOONa; MW = 112.05) must be added to 500 mL of 0.200 M lactic acid (CH CHOHCOOH, MW=90.07; K, = 1.4 X 104) in order to produce a buffered solution with a pH = 4.50? (a) 4.03 grams (b) 50.09 grams (C) 0.893 grams
1. Please calculate for the missing mmol and equivalents and show your calculations. 2. Use 3g...
1. Please calculate for the missing mmol and equivalents and
show your calculations.
2. Use 3g of 3-nitrophthalic acid and the new equivalent values
to determine what quantities of reactants and solvents are needed
for the specific mass of 3-nitrophthalic acid given. Please show
your calculations.
Reactant or Solvent d (g/mL) or M(mol/L) Molecular Weight (g/mol) Reaction Weight (g) or Volume (mL) mmol Equivalents 3-Nitrophthalic Acid NA 211.13 1.00 g 4.74 mmol 1.00 32.05 2.00 mL mmol Hydrazine (8 wt%...
Could you please explain the answer of this question clearly? Thanks in Advance, "will rate up...
Could you please explain the answer of this question
clearly?
Thanks in Advance, "will rate up the coreect and detailed
explaination"
Three batches of polystyrene are synthesized separately and combined without further reaction. A) Given the information in the table below, calculate Mn and Mw for the mixture B) Based on polydispersity index, what type of polymerization method was most likely #used to produce batch A, B and C Batch Weight in Mixture Mn(g/mol) Mw (g/mol) B 20 75 5 500000 250000 10000 500000 375000 60000
Polystyrene can be polymerized from the starting monomer
(styrene) pictured below.
a. Anionic polymerization is one method of polymerization that
can be used to generate polystyrene from styrene. Explain what type
of initiator should be used for this reaction
and draw an example of a styrene monomer that has reacted with
initiator.
b. Using this anionic polymerization method and a starting
concentration of 1M styrene and 1mM initiator, what degree of
polymerization (Xn) would you expect if you use up...
Hi Can you guys show the detailed mechanism and explanation
please. Thanks in advance.
TBHP R OD OH VO(acac), or
Please show detailed arrow-pushing
mechanism.
Thanks in advance, best regards.
OH B) Please provide a mechanism for the below transformation (8 points). NaoMe Y MeOH, Heat MeOH, Heat
please complete both tables and show your calculations
thanks
mass of the product 2.419 g
Équivalent MW(8/mol) Density(g/cm2) Mass (g or ml) 6.6 g mmol Réactants 50 1.02 130.14 Ethyl Acetoacetate 0.38g 1.93 g 12.5 0.88 30.03 paraformaldehyde 25 1.17 77.08 Ammonium acetate 25 ml 18 water Result table Theoretical Experimental Percentage Theoretical MW yield (mmol) yield (mg) yield ( mg ou 253.29 Product ННо O paraformaldehyde NH2OAC EtO OEt H2O A Scheme 3. Hantzsch Ester synthesis under ac
Isotactic Polypropylene (C3H6 MW=42g/mol), a thermo plastic is
synthesized using bulk polymerization. For a monodisperse sample
(PDI=1) the bigger molecule(higher degree of polymerization)
contain the same total mass of the polymer sample than the smaller
molecules(lower degree of polymerization). For a polydisperse
sample the MW fractions do not contain the same mass.
Flexlife is the capability of polymeric material to withstand
repeated bending without fracture. The Z average MW (Mz) is a
measure of flexlofe as well as the predominance...
1-Calculate the molecular weight of the repeat unit (monomer)
for polystyrene (above) (2 marks)
2-Using the table below, calculate the degree of polymerisation
for polystyrene
Molecular weight range (g/mol)
Number fraction,xi
500-1000
0.02
1000-3000
0.13
3000-5000
0.25
5000-10000
0.41
10000-25000
0.15
25000-50000
0.04
3-Which crystal type would be expected for Nickel Oxide (NiO,
Ni2+ ionic radius = 0.069nm, O2- ionic radius
= 0.14nm) (2 marks)
4-In order to save weight, a composite component is to be made
of aligned fibreglass...
please show the detailed answer
16 of 16 What weight of sodium lactate (CH,CHOHCOONa; MW = 112.05) must be added to 500 mL of 0.200 M lactic acid (CH CHOHCOOH, MW=90.07; K, = 1.4 X 104) in order to produce a buffered solution with a pH = 4.50? (a) 4.03 grams (b) 50.09 grams (C) 0.893 grams
1. Please calculate for the missing mmol and equivalents and
show your calculations.
2. Use 3g of 3-nitrophthalic acid and the new equivalent values
to determine what quantities of reactants and solvents are needed
for the specific mass of 3-nitrophthalic acid given. Please show
your calculations.
Reactant or Solvent d (g/mL) or M(mol/L) Molecular Weight (g/mol) Reaction Weight (g) or Volume (mL) mmol Equivalents 3-Nitrophthalic Acid NA 211.13 1.00 g 4.74 mmol 1.00 32.05 2.00 mL mmol Hydrazine (8 wt%...
Could you please explain the answer of this question
clearly?
Thanks in Advance, "will rate up the coreect and detailed
explaination"
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