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User KenOlvera57
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What is the optimum reaction conditions (temperature and time) for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas while maintaining high yield and purity?
asked
Feb 22
in
Chemical synthesis
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votes
1
answer
76
views
What is the mechanism for the nucleophilic substitution reaction of 2-bromobutane with sodium hydroxide in ethanol?
asked
Feb 21
in
Organic Chemistry
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1
answer
82
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What is the metal ion at the active site of the enzyme carbonic anhydrase, and how does it facilitate the conversion of carbon dioxide into bicarbonate?
asked
Feb 20
in
Coordination Chemistry
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1
answer
79
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How does quantum coherence and entanglement affect the properties and behavior of molecular and nanoscale systems, and how can it be utilized in the design and engineering of new materials with desirable properties?
asked
Feb 14
in
Quantum Chemistry
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votes
1
answer
151
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How can the yield of polyacrylonitrile be improved during its synthesis process from acrylonitrile monomer?
asked
Feb 13
in
Chemical synthesis
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votes
1
answer
80
views
How can we design a drug that can correct the mutations and genetic abnormalities in patients suffering from cystic fibrosis?
asked
Feb 12
in
Medicinal Chemistry
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1
answer
171
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How can the structure and composition of drug delivery systems be optimized to improve efficacy and decrease potential side effects?
asked
Feb 10
in
Medicinal Chemistry
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1
answer
80
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How can the excess nitrogen and phosphorus pollution in a water body be assessed and controlled to improve the water quality for human and aquatic life?
asked
Feb 7
in
Environmental Chemistry
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votes
1
answer
78
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How can chemistry educational institutions prioritize the implementation and reinforcement of safety protocols within their laboratories to reduce the incidence of accidents and ensure the safety of students, faculty, and staff?
asked
Feb 4
in
Chemical education
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120
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Design a heat exchanger that can effectively transfer heat between a hot stream of ethanol with a flow rate of 2 kg/s and a cold stream of water with a flow rate of 5 kg/s. The inlet temperature of ethanol is 80°C, while the inlet temperature of water is 20°C. The outlet temperature of ethanol should be 30°C, while the outlet temperature of water should not exceed 35°C. The heat exchanger should have a heat transfer coefficient of at least 500 W/m^2K and a total surface area of no more than 10 m^2.
asked
Feb 4
in
Chemical engineering
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1
answer
131
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What is the effect of temperature on the binding affinity of a specific protein-ligand complex? Use molecular dynamics simulations to study the binding energy and stability of the complex at different temperatures.
asked
Jan 31
in
Computational Chemistry
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1
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120
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How can ab initio calculations be used to accurately predict the excited state dynamics of molecules in various solvents?
asked
Jan 30
in
Computational Chemistry
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1
answer
97
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Who proposed the PERMAL model?
asked
Jan 20
in
Psychology
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1
answer
42
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What are Type I errors?
asked
Jan 16
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Psychology
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1
answer
59
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What is a cross-sectional study?
asked
Jan 14
in
Psychology
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1
answer
98
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Who developed the concept of authenticity in existential psychology?
asked
Jan 10
in
Psychology
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1
answer
63
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What will be the effect to an organism if its homeostasis is not maintained?
asked
Jan 8
in
Science
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votes
1
answer
59
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What type of energy is used when a roller coaster runs downhill?
asked
Jan 8
in
Science
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votes
1
answer
24
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What shape are the eight sides of an octahedra?
asked
Jan 7
in
Science
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1
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113
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What kind of electricity can you generate with the energy found in flowing water?
asked
Jan 7
in
Science
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