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How do the photochemical properties of lanthanide complexes differ from other transition metal complexes? Provide a detailed explanation of the factors that contribute to these differences and their potential applications in photochemical processes.
answered
3 days
ago
in
PhotoChemistry
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votes
20
views
What is the optimal stoichiometric ratio of adipic acid and hexamethylenediamine for the synthesis of nylon-6,6 and how does varying this ratio affect the yield and properties of the final product?
answered
4 days
ago
in
Chemical synthesis
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votes
24
views
What is the hybridization of oxygen in the molecule H2O?
answered
5 days
ago
in
Chemical bonding
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votes
28
views
How does the band gap of a material change when the size of the unit cell is varied using density functional theory calculations?
answered
Feb 17
in
Computational Chemistry
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votes
25
views
How can we predict the chemical reactivity and selectivity of a molecule using quantum chemical calculations?
answered
Feb 14
in
Quantum Chemistry
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26
views
What factors affect the phosphorescence efficiency of a material, and how do these factors relate to the molecular structure of the material?
answered
Feb 14
in
PhotoChemistry
0
votes
10
views
How can we design antiviral drugs that specifically target the spike proteins of SARS-CoV-2 virus without affecting the host cells?
answered
Feb 12
in
Medicinal Chemistry
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votes
48
views
How can the process of producing polymers be optimized to increase production efficiency without compromising the quality of the final product?
answered
Feb 10
in
Chemical engineering
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votes
33
views
How can students in rural areas with limited access to chemistry-related extracurricular activities still develop a strong foundation in chemistry and succeed academically?
answered
Feb 5
in
Chemical education
0
votes
52
views
Determine the acidity or basicity of the following molecules: ammonia (NH3), hydrogen chloride (HCl), water (H2O), and carbon dioxide (CO2). Rank them in order of increasing acidity or increasing basicity and explain your reasoning.
answered
Feb 4
in
Chemical bonding
0
votes
39
views
Calculate the zeta potential of a colloidal particle, given that the particle has a charge of -3.2 × 10^-19 C, a diameter of 250 nm, and is suspended in a solution with a dielectric constant of 78.3.
answered
Feb 3
in
Surface Chemistry
0
votes
58
views
Calculate the standard enthalpy change for the fusion reaction of 1 mole of ice at 0°C to 1 mole of liquid water at 0°C. Given the standard enthalpy of fusion of water is 6.02 kJ/mol and the specific heat capacity of water is 4.18 J/(g·°C).
answered
Feb 3
in
Chemical thermodynamics
0
votes
80
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What methods can be used to break down complex chemical concepts into simpler and more understandable components for students who are having difficulty grasping the material?
answered
Jan 30
in
Chemical education
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votes
37
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Calculate the melting point of aluminum oxide (Al2O3) given that its enthalpy of fusion is 326 kJ/mol and its entropy of fusion is 110 J/(mol*K). Assume standard pressure and temperature conditions (STP).
answered
Jan 23
in
Inorganic Chemistry
0
votes
39
views
When did Wilhelm Wundt open the first psychology laboratory?
answered
Jan 20
in
Psychology
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votes
49
views
According to the biopsychosocial model, what are the factors that contribute to health and illness?
answered
Jan 20
in
Psychology
0
votes
35
views
What is cognitive load theory?
answered
Jan 17
in
Psychology
0
votes
30
views
What is the impact of child temperament on parenting?
answered
Jan 17
in
Psychology
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votes
42
views
What is empirical support?
answered
Jan 16
in
Psychology
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votes
51
views
Why do perceptual illusions occur?
answered
Jan 15
in
Psychology
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