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What is the optimal temperature and pressure conditions for the synthesis of polyethylene oxide with a desired molecular weight using ethylene oxide monomer as the raw material?
asked
5 days
ago
in
Chemical synthesis
0
votes
1
answer
25
views
What is the mechanism of the Hofmann Elimination reaction with primary amines, and how does it differ from the E2 mechanism? Provide an example of each mechanism and explain the differences in the products.
asked
Feb 20
in
Organic Chemistry
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votes
1
answer
20
views
What is the effect of temperature on the phase behavior of a liquid crystal through Monte Carlo simulations?
asked
Feb 20
in
Computational Chemistry
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votes
1
answer
27
views
How does the dosage of specific existing medications affect their toxicity levels towards human cells?
asked
Feb 19
in
Medicinal Chemistry
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votes
1
answer
19
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What is the bond angle in the water molecule and how is it predicted using the VSEPR theory and the electron pair geometry of the molecule?
asked
Feb 18
in
Chemical bonding
0
votes
1
answer
22
views
How does the addition of nanoparticles affect the mechanical properties of polymer nanocomposites?
asked
Feb 17
in
Polymer Chemistry
0
votes
1
answer
39
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How can we effectively and safely dispose of radioactive waste without causing harmful environmental impacts, and what chemical processes are involved in the disposal methods?
asked
Feb 13
in
Environmental Chemistry
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votes
1
answer
50
views
What are the common difficulties faced by chemistry students in understanding the organization and periodic trends of elements in the periodic table? How can these difficulties be overcome through effective teaching strategies and learning resources?
asked
Feb 12
in
Chemical education
0
votes
1
answer
30
views
How can the medicinal chemistry approach be utilized to develop novel, effective treatments for inflammatory bowel disease (IBD)?
asked
Feb 10
in
Medicinal Chemistry
0
votes
1
answer
57
views
How can a chemical engineering process be developed to produce [insert specific chemical name] with high purity and yield using cost-effective and sustainable methods?
asked
Feb 4
in
Chemical engineering
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votes
1
answer
48
views
Develop a design for a system that effectively treats the wastewater produced by a textile factory, addressing the removal of coloring agents, heavy metals, and other hazardous contaminants.
asked
Feb 4
in
Chemical engineering
0
votes
1
answer
45
views
Design a novel polymer-based drug delivery system for targeted cancer therapy that ensures controlled and sustained drug release with minimal adverse effects on healthy cells. Consider the physicochemical properties of the drug and the polymer, as well as their interactions and biocompatibility. Provide a detailed explanation of the mechanism of drug release and the potential benefits of the proposed system.
asked
Feb 4
in
Polymer Chemistry
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votes
1
answer
62
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Calculate the enthalpy of polymerization for the synthesis of polyethylene from its monomer using the given data:- Standard enthalpy of formation of ethylene (C2H4) = +52.3 kJ/mol- Standard enthalpy of formation of polyethylene (-[-CH2-]n-) = -256 kJ/mol
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
9
views
Assuming you have a mixture of ethanol and water, design a distillation column that can achieve a 95% purity of ethanol in the distillate using the minimum number of plates possible. The feed to the column contains 40% ethanol and 60% water, and the distillate and bottoms products need to be at least 95% pure. The column operates at atmospheric pressure and the feed rate is 100 kg/hr. Also, determine the reflux ratio required to achieve this separation.
asked
Jan 22
in
Chemical engineering
0
votes
1
answer
48
views
How does the social exchange theory explain the role of reciprocity and social norms in violence?
asked
Jan 20
in
Psychology
0
votes
1
answer
61
views
When might prolonged exposure therapy be used?
asked
Jan 20
in
Psychology
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votes
1
answer
79
views
Please evaluate the Freud's psychoanalytic theory.
asked
Jan 17
in
Psychology
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votes
1
answer
34
views
What is egocentrism in children?
asked
Jan 17
in
Psychology
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votes
1
answer
48
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When studying anxiety disorders, what is panic disorder?
asked
Jan 17
in
Psychology
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votes
1
answer
48
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According to the sociocultural model, what is the cause of eating disorders?
asked
Jan 16
in
Psychology
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