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How does the photochemical behavior of enantiomers differ from each other and what are the implications of these differences in terms of chemical and biological applications?
asked
3 days
ago
in
PhotoChemistry
0
votes
1
answer
15
views
What is the effect of pH on the structure and function of proteins? Provide specific examples and explain the underlying chemical mechanisms involved.
asked
3 days
ago
in
BioChemistry
0
votes
1
answer
21
views
What is the optimum temperature and pressure for the production of polyethylene oxide from the monomer ethylene oxide using a catalytic reactor? And what are the key properties of the resulting polymer, such as molecular weight and functionality?
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
18
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What is the efficiency of activated carbon in removing a specific pollutant from water under varying conditions such as temperature, pH, and contact time?
asked
5 days
ago
in
Surface Chemistry
0
votes
1
answer
35
views
How does the composition and structure of luminescent materials affect their photochemical properties, including their emission spectra, quantum yield, and lifetime?
asked
6 days
ago
in
PhotoChemistry
0
votes
1
answer
20
views
What is the balanced chemical equation for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?
asked
Feb 17
in
Chemical reactions
0
votes
1
answer
25
views
What is the balanced chemical equation for the combustion of ethane (C2H6) in the presence of excess oxygen, and what is the amount of carbon dioxide produced if 5 moles of ethane are burned?
asked
Feb 17
in
Chemical reactions
0
votes
1
answer
31
views
How does the process of passivation protect metals from corrosion and what factors influence the effectiveness of this process?
asked
Feb 14
in
Surface Chemistry
0
votes
1
answer
11
views
How can medicinal chemists design drugs to specifically target the lifecycle of the Zika virus while minimizing the risk of harming healthy cells?
asked
Feb 5
in
Medicinal Chemistry
0
votes
1
answer
30
views
How can computational techniques be used to predict and optimize the creation of supramolecular complexes for drug delivery applications?
asked
Feb 5
in
Computational Chemistry
0
votes
1
answer
72
views
Here's a chemistry question for the student to solve: What is the predicted acidity or basicity of a molecule with the chemical formula CH3COOH? Provide a justification for your prediction based on the chemical structure and relevant chemical principles.
asked
Feb 4
in
Chemical bonding
0
votes
1
answer
49
views
Calculate the standard enthalpy change for the following reaction involving liquids at 298 K: C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)Given the standard enthalpies of formation of C2H5OH(l), CO2(g) and H2O(l) are −277.6 kJ/mol, −393.5 kJ/mol and −285.8 kJ/mol respectively.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
46
views
Calculate the standard enthalpy change for the dissolution of 3.00 moles of sodium chloride in water, given that the molar enthalpy of solution of sodium chloride is -3.88 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
53
views
What type of bond would be formed between a chlorine atom and a sodium atom, and what is the nature of this bond?
asked
Jan 30
in
Chemical bonding
0
votes
1
answer
60
views
How can the composition and crystalline structure of a mineral sample be determined using X-ray diffraction analysis?
asked
Jan 29
in
Analytical Chemistry
0
votes
1
answer
61
views
A chemistry student needs to determine the rate constant for the reaction between hydrochloric acid and sodium thiosulfate. If the initial concentration of hydrochloric acid is 0.1 M, the initial concentration of sodium thiosulfate is 0.05 M, and the initial rate of the reaction is 8.7 x 10^-5 mol/L.s, what is the rate constant for this reaction?
asked
Jan 22
in
Chemical kinetics
0
votes
1
answer
28
views
According to the evolutionary theory, what is the adaptive function of emotions?
asked
Jan 17
in
Psychology
0
votes
1
answer
49
views
What is a focus group?
asked
Jan 17
in
Psychology
0
votes
1
answer
44
views
Who proposed the use of chlorpromazine in the treatment of schizophrenia?
asked
Jan 16
in
Psychology
0
votes
1
answer
45
views
Why is the social exchange theory criticised?
asked
Jan 16
in
Psychology
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