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1
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What is the optimal ratio of diisocyanate and polyol for synthesizing polyurethane with the highest possible mechanical strength?
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
24
views
How do the excited state dynamics of a molecule differ from its ground state, and how can these differences be studied and quantified through ab initio calculations?
asked
5 days
ago
in
Computational Chemistry
0
votes
1
answer
40
views
How does the chemical structure of DNA facilitate the process of replication and repair, and what are the specific enzymes involved in these processes?
asked
Feb 18
in
BioChemistry
0
votes
1
answer
29
views
What is the activation energy of the reaction between hydrogen peroxide and iodide ions, given that the rate constant at 25°C is 4.5 x 10^-4 s^-1 and the activation energy is 75 kJ/mol?
asked
Feb 17
in
Chemical kinetics
0
votes
1
answer
36
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How do different types of Persistent Organic Pollutants (POPs), such as polychlorinated biphenyls (PCBs) and pesticides, impact the environment and human health, and what are the most effective methods for reducing their presence in the environment?
asked
Feb 14
in
Environmental Chemistry
0
votes
1
answer
41
views
How does the activation of G protein-coupled receptors (GPCRs) lead to the activation of downstream signal transduction pathways in biochemical terms?
asked
Feb 13
in
BioChemistry
0
votes
1
answer
27
views
How does eutrophication affect the dissolved oxygen levels in aquatic ecosystems and what are the potential consequences for the ecosystem and its inhabitants?
asked
Feb 13
in
Environmental Chemistry
0
votes
1
answer
35
views
What is the difference between E1 and E2 mechanisms in elimination reactions? Provide an example of each mechanism and discuss the factors that influence the rate of each reaction.
asked
Feb 13
in
Organic Chemistry
0
votes
1
answer
9
views
How can we design a novel antiviral drug that specifically targets the replication cycle of the influenza virus?
asked
Feb 12
in
Medicinal Chemistry
0
votes
1
answer
29
views
How can the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer be optimized to achieve a high yield and a high degree of polymerization?
asked
Feb 11
in
Chemical synthesis
0
votes
1
answer
25
views
How can the synthesis of polyethylene terephthalate from terephthalic acid and ethylene glycol be optimized to improve the yield and purity of the final product?
asked
Feb 11
in
Chemical synthesis
0
votes
1
answer
28
views
How can the synthesis of metal-organic frameworks be optimized to improve the efficiency and yield of the reaction while ensuring the structural integrity of the resulting material?
asked
Feb 11
in
Materials Chemistry
0
votes
1
answer
32
views
How can self-assembly be utilized to create supramolecular structures with specific properties for drug delivery applications?
asked
Feb 5
in
Physical Chemistry
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votes
1
answer
42
views
Given the molecular formula of a diatomic molecule (A2), how can we use calculation of molecular orbitals to determine the bond order and predict the bond length?
asked
Feb 4
in
Quantum Chemistry
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votes
1
answer
65
views
How might we increase the availability of chemistry-related extracurricular activities for high school students living in rural areas?
asked
Jan 30
in
Chemical education
0
votes
1
answer
65
views
Calculate the heat of formation for the compound methane (CH4) given that the enthalpy change for the reaction of carbon (C) with hydrogen gas (H2) to form methane gas (CH4) is -74.8 kJ/mol.
asked
Jan 23
in
Chemical bonding
0
votes
1
answer
53
views
Why are medications commonly used in treating mental illness?
asked
Jan 20
in
Psychology
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votes
1
answer
27
views
Why is positive psychology relevant to education?
asked
Jan 20
in
Psychology
0
votes
1
answer
27
views
Why is falsifiability an important criterion for evaluating neuroscience theories?
asked
Jan 20
in
Psychology
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votes
1
answer
11
views
What is Jane Goodall's research focused on?
asked
Jan 17
in
Psychology
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