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What is the proper procedure for the preparation of p-nitroaniline using aniline and nitric acid as the starting materials, and how can the purity of the final product be confirmed using various analytical techniques?
answered
5 days
ago
in
Chemical synthesis
0
votes
29
views
What is the most effective UV filter substance in commercially available sunscreens, and what is its mechanism of action in protecting the skin from harmful UV radiation?
answered
6 days
ago
in
PhotoChemistry
0
votes
24
views
What is the mechanism of micelle formation by soap molecules in the Surface chemistry of detergents and cleaning agents, and how does it lead to effective cleaning of oily substances from various surfaces?
answered
6 days
ago
in
Surface Chemistry
0
votes
27
views
What is the difference between primary, secondary, and tertiary amines, and how do their structures affect their physical and chemical properties?
answered
Feb 14
in
Organic Chemistry
0
votes
34
views
What is the predicted color of a compound containing a transition metal ion with an oxidation state of +3 in an octahedral geometry?
answered
Feb 14
in
Inorganic Chemistry
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votes
37
views
How do different types of polymer-based packaging materials (e.g. polyethylene, polypropylene, polystyrene, etc.) affect the environment during their production, use, and disposal, and what steps can be taken to reduce their environmental impact?
answered
Feb 14
in
Polymer Chemistry
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votes
38
views
How do microplastics degrade over time and what are the chemical processes involved?
answered
Feb 13
in
Environmental Chemistry
0
votes
35
views
What are the mechanical properties of hydrogels used in tissue engineering and how can they be optimized to improve their biocompatibility and promote cell growth and differentiation?
answered
Feb 13
in
Materials Chemistry
0
votes
29
views
How do different types of DNA-protein interactions affect the stability and dynamics of the protein-DNA complex in molecular dynamics simulations?
answered
Feb 12
in
Computational Chemistry
0
votes
38
views
How can the potential environmental impact of radioactive waste disposal be minimized through the use of chemical engineering techniques such as vitrification and ion exchange?
answered
Feb 10
in
Environmental Chemistry
0
votes
29
views
How can the mechanical and thermal properties of polymer-based composites be optimized for use in aerospace applications?
answered
Feb 7
in
Polymer Chemistry
0
votes
35
views
How can magnetic nanoparticles be synthesized and characterized for efficient drug delivery?
answered
Feb 5
in
Materials Chemistry
0
votes
52
views
A student wants to find the enthalpy change of a chemical reaction using Hess's Law, but the only information provided is the enthalpy change of two other reactions. Design an experiment to determine the enthalpy change of the unknown reaction using the given data and Hess's Law.
answered
Jan 22
in
Chemical reactions
0
votes
63
views
A chemistry student needs to determine the rate law for the reaction between hydrogen peroxide and iodide ion in the presence of an acid catalyst. Using experimental data, what is the order of the reaction with respect to hydrogen peroxide, iodide ion, and acid? Write the rate law equation for this reaction.
answered
Jan 22
in
Chemical kinetics
0
votes
35
views
What is the theoretical foundation for psychodynamic therapy?
answered
Jan 20
in
Psychology
0
votes
27
views
What does the transdiagnostic model of psychosis suggest about comorbidity?
answered
Jan 20
in
Psychology
0
votes
39
views
Why is resilience important in mental health?
answered
Jan 20
in
Psychology
0
votes
13
views
How can technology-based interventions help with recovery?
answered
Jan 17
in
Psychology
0
votes
56
views
How does attention affect academic performance?
answered
Jan 17
in
Psychology
0
votes
27
views
Where does parsimony fit in theory evaluation?
answered
Jan 16
in
Psychology
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