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What are the optimal conditions for synthesizing gold nanoparticles with a uniform size and shape using the seed-mediated growth method?
asked
1 day
ago
in
Materials Chemistry
0
votes
1
answer
18
views
What is the stepwise mechanism of the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas, and what are the optimum conditions required for the reaction to proceed with maximum yield?
asked
3 days
ago
in
Chemical synthesis
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1
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26
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What is the preferred method for synthesis of symmetrical ethers using alcohols and acids, and what are some limitations and drawbacks of this method?
asked
3 days
ago
in
Organic Chemistry
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votes
1
answer
17
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What is the effect of different photosensitizers (e.g. porphyrins, phthalocyanines) on the rate of the photochemical reaction of a specific compound (e.g. benzophenone) and what factors influence this effect?
asked
6 days
ago
in
PhotoChemistry
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1
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33
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How do the chemical properties of polymer-based packaging materials affect their biodegradability and environmental impact?
asked
Feb 18
in
Polymer Chemistry
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1
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31
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How does quantum coherence and entanglement affect the properties and behavior of molecular and nanoscale systems, and what are the potential practical applications of this knowledge in fields such as quantum computing and nanotechnology?
asked
Feb 14
in
Quantum Chemistry
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1
answer
42
views
How does the change in concentration of reactants affect the reaction rate in a first-order reaction? Provide experimental evidence to support your answer.
asked
Feb 13
in
Chemical kinetics
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votes
1
answer
9
views
How can we design drugs that selectively target cancer cells without harming healthy cells? What chemical properties and molecular structures should be considered in the design of such drugs?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
10
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How can we design a drug that specifically targets and inhibits the growth of HER2-positive breast cancer cells without harming healthy cells in the body?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
38
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How do chaperone proteins aid in the folding process of newly synthesized polypeptides during protein synthesis?
asked
Feb 12
in
BioChemistry
0
votes
1
answer
37
views
How can the production process of a specific type of paint be optimized to reduce production costs while maintaining desired product quality and performance characteristics?
asked
Feb 10
in
Chemical engineering
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votes
1
answer
9
views
How can the design of drugs be optimized to specifically target cancer cells while minimizing harmful effects on healthy cells?
asked
Feb 7
in
Medicinal Chemistry
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1
answer
30
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How can the critical temperature of a superconducting material be optimized through chemical doping and what is the effect of different dopants on the material's properties?
asked
Feb 6
in
Materials Chemistry
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1
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10
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Consider a system that consists of water and sodium chloride (NaCl) at room temperature and atmospheric pressure. The student is asked to determine the minimum amount of NaCl that needs to dissolve in 100 grams of water in order to form a saturated solution. The student should also calculate the molar solubility of NaCl in the solution.
asked
Feb 3
in
Physical Chemistry
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votes
1
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63
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What is the structure of compound X, based on its nuclear magnetic resonance spectroscopy spectrum, which displays a singlet at 3.8 ppm and a quartet at 1.2 ppm?
asked
Jan 31
in
Analytical Chemistry
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votes
1
answer
81
views
How can a chemical engineer design a system for the safe storage and transportation of hazardous chemicals, taking into account factors such as chemical compatibility, transportation regulations, and emergency response procedures?
asked
Jan 30
in
Chemical engineering
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votes
1
answer
59
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How would you calculate the mass of zinc in a 1.000 g sample of a brass alloy using gravimetric analysis?
asked
Jan 30
in
Analytical Chemistry
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1
answer
59
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According to the Global Neuronal Workspace Theory, what is the purpose of consciousness?
asked
Jan 20
in
Psychology
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1
answer
32
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Who proposed the dual process theory of decision making?
asked
Jan 20
in
Psychology
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1
answer
58
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Why do some researchers suggest that mindfulness-based interventions may be useful in reducing violent behaviour?
asked
Jan 20
in
Psychology
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