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1
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How do the photochemical properties of silver nanoparticles differ from those of gold nanoparticles in terms of catalytic efficiency and reaction rates under different light intensities?
asked
5 days
ago
in
PhotoChemistry
0
votes
1
answer
22
views
What is the molecular orbital diagram and electronic structure of a nitrogen molecule (N2)?
asked
6 days
ago
in
Quantum Chemistry
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votes
1
answer
29
views
What is the coordination geometry of the metal center in the metalloprotein myoglobin, and how does that geometry influence its function in oxygen storage and release?
asked
6 days
ago
in
Coordination Chemistry
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votes
1
answer
20
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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
Feb 20
in
Surface Chemistry
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votes
1
answer
29
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What is the effect of temperature on the surface tension of a lipid bi-layer in a biomembrane? Use surface tension measurements and analysis of fatty acid composition to determine the changes in the structure and properties of the biomembrane.
asked
Feb 20
in
Surface Chemistry
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votes
1
answer
30
views
What is the balanced chemical equation for the preparation of 4-bromoacetanilide from acetanilide and bromine, and what is the theoretical yield of 4-bromoacetanilide if 5 grams of acetanilide and excess bromine are used in the reaction?
asked
Feb 17
in
Chemical synthesis
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votes
1
answer
11
views
How can we design drugs that selectively target cancer cells while avoiding damage to healthy cells in the human body?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
47
views
How can the properties of liquid crystals be optimized to improve the performance of display technology, such as increasing the resolution and reducing energy consumption?
asked
Feb 10
in
Materials Chemistry
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votes
1
answer
36
views
How can chemistry teachers effectively use technology to enhance student understanding and engagement in the classroom?
asked
Feb 5
in
Chemical education
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votes
1
answer
56
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How does changing the reaction conditions, such as temperature and pressure, affect the properties of the final product in the production of polymers?
asked
Feb 3
in
Chemical engineering
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votes
1
answer
71
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What are the major sources of carbon emissions in your local community and what actions can be taken to reduce their impact on the environment?
asked
Jan 31
in
Environmental Chemistry
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votes
1
answer
72
views
What is the concentration of iron in a water sample collected from a local lake using voltammetry with a standard potential of -0.44 V?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
43
views
Calculate the enthalpy change (in kJ/mol) for dissolving 10 grams of NaOH in 100 mL of water at 25°C, given that the molar heat of solution for NaOH is -444.6 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
61
views
Calculate the corrosion current density of a stainless steel electrode in a 0.5 M HCl solution at 25 degrees Celsius, given that the polarization resistance of the electrode is 200 ohms and the corrosion potential is -0.3 V vs. the standard hydrogen electrode (SHE).
asked
Jan 23
in
ElectroChemistry
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votes
1
answer
56
views
A student wants to determine the rate constant of a first-order reaction. The initial concentration of reactant is 0.050 M and after 60 seconds, the concentration drops to 0.025 M. What is the rate constant of the reaction?
asked
Jan 22
in
Chemical kinetics
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votes
1
answer
42
views
Who came up with the concept of the id, ego, and superego?
asked
Jan 20
in
Psychology
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votes
1
answer
65
views
What is the niche construction theory?
asked
Jan 15
in
Psychology
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votes
1
answer
30
views
What is the social identity development model?
asked
Jan 15
in
Psychology
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votes
1
answer
31
views
What is the purpose of a hypothesis?
asked
Jan 14
in
Psychology
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votes
1
answer
63
views
What is anxious-ambivalent attachment?
asked
Jan 14
in
Psychology
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