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What is the optimum reaction temperature for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer using different catalysts and what effect do these catalysts have on the reaction?
asked
4 days
ago
in
Chemical synthesis
0
votes
1
answer
28
views
How do the mechanical properties, such as tensile strength and elasticity, of different types of polymers used in biomedical applications, such as implantable medical devices or drug delivery systems, affect their performance and longevity?
asked
5 days
ago
in
Materials Chemistry
0
votes
1
answer
27
views
What is the dipole moment of the molecule ammonia (NH3)?
asked
6 days
ago
in
Chemical bonding
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votes
1
answer
39
views
How does temperature affect the folding/unfolding of protein structures in a water environment, as observed through molecular dynamics simulations?
asked
Feb 17
in
Computational Chemistry
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votes
1
answer
38
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What is the mechanism of action of the drug penicillin, and how does it target and inhibit bacterial cell wall synthesis?
asked
Feb 14
in
Medicinal Chemistry
0
votes
1
answer
31
views
What is the net ATP gained during glycolysis, and how is it generated?
asked
Feb 13
in
BioChemistry
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votes
1
answer
33
views
How do Chlorofluorocarbons (CFCs) contribute to the depletion of ozone in the atmosphere, and what chemical reactions lead to the breakdown of ozone?
asked
Feb 12
in
Environmental Chemistry
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votes
1
answer
45
views
How can the synthesis of carbon nanotubes be improved to enhance their electrical conductivity and mechanical strength for use in high-performance electronics and nanocomposites?
asked
Feb 11
in
Materials Chemistry
0
votes
1
answer
48
views
Determine the rate law for the reaction of nitrogen dioxide with hydrogen gas, if the reaction rate is directly proportional to the concentration of nitrogen dioxide and the square of the concentration of hydrogen gas. Express the rate law in terms of the rate constant and the concentrations of the reactants.
asked
Feb 4
in
Chemical kinetics
0
votes
1
answer
58
views
Calculate the standard enthalpy change (∆H°) for the reaction between 25.0 mL of 0.100 M HCl and 25.0 mL of 0.100 M NaOH at 25°C. The density of each solution is 1.00 g/mL and the heat capacity of the solution is 4.18 J/g·°C. The reaction takes place in a calorimeter, and the temperature increase is measured to be 8.47°C.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
61
views
What is the expected acidity or basicity of a molecule with a formula of C6H5OH? Justify your answer with an explanation of the chemical bonding and electronegativity of the atoms involved in the molecule.
asked
Jan 31
in
Chemical bonding
0
votes
1
answer
101
views
What is the dipole moment of water molecule using ab initio calculations?
asked
Jan 31
in
Computational Chemistry
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votes
1
answer
75
views
What is the composition and concentration of the components in a mixture of gasoline using gas chromatography?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
59
views
Who conducted the study on cognitive bias modification for eating disorders?
asked
Jan 17
in
Psychology
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votes
1
answer
50
views
What is the cognitive-behavioural theory explanation for personality disorders?
asked
Jan 17
in
Psychology
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votes
1
answer
72
views
What are the main criteria used in theory evaluation?
asked
Jan 16
in
Psychology
0
votes
1
answer
32
views
When evaluating the theories of social influence, what is the door-in-the-face technique?
asked
Jan 16
in
Psychology
0
votes
1
answer
74
views
What is auditory gap detection?
asked
Jan 15
in
Psychology
0
votes
1
answer
72
views
What is the name of the fifth stage in Erikson's theory of psychosocial development?
asked
Jan 14
in
Psychology
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votes
1
answer
36
views
What is aphasia?
asked
Jan 14
in
Psychology
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