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What is the mechanism for the reaction between ethene and hydrogen bromide, and what is the nature of the intermediate(s) involved in this reaction?
asked
Feb 22
in
Organic Chemistry
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votes
1
answer
29
views
How do the photochemical properties of photosensitive materials used in photography affect the quality and durability of photographs?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
27
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How does the pH of the solution affect the rate of the photochemical reaction between a specific photosensitizer and a particular substrate, and how can we optimize the pH to obtain the maximum reaction rate?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
40
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What is the optimal molar ratio of phenol to nitric acid for the preparation of 2,4-dinitrophenol, and how does changing this ratio affect the yield and purity of the final product?
asked
Feb 21
in
Chemical synthesis
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votes
1
answer
24
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How do the properties of surfactants change with variations in the hydrophilic and lipophilic chain lengths in their molecular structure?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
37
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How can the yield of a specific chemical reaction be optimized by adjusting the reaction conditions such as temperature, pressure, and reactant concentrations?
asked
Feb 14
in
Chemical engineering
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votes
1
answer
59
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What is the effect of incorporating different dopants (such as nitrogen or boron) into graphene using density functional theory calculations, and how does the electronic structure of the resulting materials change compared to pristine graphene?
asked
Feb 13
in
Computational Chemistry
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votes
1
answer
15
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How does crystal field theory explain the color of transition metal complexes? Provide an example of a complex and explain how its color can be predicted based on its electronic structure and crystal field splitting.
asked
Feb 12
in
Coordination Chemistry
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votes
1
answer
84
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How can the self-assembly of supramolecular structures be manipulated for the development of new and more efficient drug delivery systems?
asked
Feb 10
in
Physical Chemistry
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votes
1
answer
42
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How can the mechanical and chemical properties of polymer-based biomaterials be optimized to enhance tissue regeneration and functional restoration in case of tissue damage or diseases?
asked
Feb 7
in
Polymer Chemistry
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votes
1
answer
89
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What is the effect of changing the concentration of reactants on the rate of a chemical reaction at equilibrium?
asked
Feb 3
in
Chemical kinetics
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votes
1
answer
80
views
What is the rate constant for the photoisomerization of retinal to the all-trans configuration in the Rhodopsin protein, using ab initio calculations of excited state dynamics?
asked
Jan 31
in
Computational Chemistry
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votes
1
answer
119
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A student wants to know the equilibrium concentration of hydrogen gas and nitrogen gas at a particular temperature and pressure when they are mixed in a container in a 2:1 ratio. The student also wants to calculate the equilibrium constant of the reaction when nitrogen and hydrogen form ammonia. Can you help the student by designing a step-by-step procedure to find the equilibrium concentrations and equilibrium constant at the given conditions?
asked
Jan 22
in
Physical Chemistry
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1
answer
68
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Why is therapy often recommended in conjunction with medication for mental health issues?
asked
Jan 20
in
Psychology
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votes
1
answer
110
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When was the study on exposure therapy for anxiety disorders by Wolpe conducted?
asked
Jan 20
in
Psychology
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votes
1
answer
38
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When did informed consent become a requirement for human research?
asked
Jan 17
in
Psychology
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votes
1
answer
38
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In contrast, how does gestalt therapy approach thoughts?
asked
Jan 17
in
Psychology
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votes
1
answer
110
views
According to the socio-cultural theory, what is the role of gender in anxiety?
asked
Jan 17
in
Psychology
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votes
1
answer
79
views
How is discursive psychology different from traditional psychology approaches?
asked
Jan 16
in
Psychology
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votes
1
answer
56
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According to cognitive dissonance theory, what is cognitive dissonance?
asked
Jan 16
in
Psychology
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