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26
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How does the size and shape of nanoparticles affect their optical and electronic properties?
answered
1 day
ago
in
Physical Chemistry
0
votes
21
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How do the primary, secondary, tertiary, and quaternary structures of a protein affect its overall function, and what chemical bonds and interactions are involved in the folding and stabilization of these structures?
answered
3 days
ago
in
BioChemistry
0
votes
15
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What is the effect of different ligands on the photochemical properties of transition metal complexes?
answered
3 days
ago
in
PhotoChemistry
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votes
16
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What is the most efficient catalyst for the esterification reaction in the process of producing biofuels from vegetable oils?
answered
4 days
ago
in
Chemical engineering
0
votes
26
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What is the heat of combustion (in kJ/mol) of butane (C4H10) gas at 25°C and 1 atm pressure, assuming complete combustion?
answered
5 days
ago
in
Chemical reactions
0
votes
28
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How does the electrokinetic potential affect the stability of colloidal systems and what is the mechanism behind it?
answered
5 days
ago
in
Surface Chemistry
0
votes
34
views
How can we use molecular modeling software to predict the behavior of enzymes in various solvent and temperature conditions during a chemical reaction?
answered
Feb 13
in
Physical Chemistry
0
votes
35
views
What is the hybridization of the central atom in the molecule SF6?
answered
Feb 13
in
Inorganic Chemistry
0
votes
34
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How can the efficiency of the hydrogen fuel production system be improved without compromising the quality and purity of the final product?
answered
Feb 7
in
Chemical engineering
0
votes
67
views
Calculate the standard enthalpy change and entropy change for the reaction: 2Fe(s) + 3/2O2(g) -> Fe2O3(s) Given the standard enthalpies of formation of Fe(s), O2(g), and Fe2O3(s) are -0.44 kJ/mol, 0 kJ/mol, and -826 kJ/mol, respectively. Also, the standard molar entropy of Fe2O3(s) is 87.4 J/(mol K).
answered
Feb 3
in
Inorganic Chemistry
0
votes
72
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Calculate the standard electrode potential for the redox reaction: Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s) Given that the standard reduction potential for Ag+ is +0.80 V and for Cu2+ is +0.34 V.
answered
Feb 3
in
Chemical thermodynamics
0
votes
55
views
What are the mechanisms by which bacteria develop resistance to antibiotics, and how can medicinal chemists modify existing antibiotics or develop new ones to overcome these mechanisms and effectively combat drug-resistant bacteria?
answered
Jan 31
in
Medicinal Chemistry
0
votes
99
views
What is the difference between a polar and nonpolar covalent bond, and how does the presence of polar or nonpolar bonds contribute to the overall polarity of a molecule? Provide specific examples to illustrate your answer.
answered
Jan 30
in
Chemical education
0
votes
51
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How can the concentration of heavy metals (such as lead, mercury, arsenic) in a water sample be accurately quantified using atomic absorption spectroscopy, and how can this data be used to determine if the sample is safe for consumption according to regulatory guidelines?
answered
Jan 29
in
Analytical Chemistry
0
votes
71
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A chemistry student needs to determine the equilibrium concentrations of reactants and products for the following reaction:2 NOCl (g) ⇌ 2 NO (g) + Cl2 (g)The initial concentration of NOCl is 0.50 M and the equilibrium constant, Kc = 4.68 x 10^-3. What are the equilibrium concentrations of NO and Cl2?
answered
Jan 22
in
Chemical equilibrium
0
votes
47
views
Who is responsible for the success of community psychology initiatives?
answered
Jan 20
in
Psychology
0
votes
38
views
What are the implications of the broaden-and-build theory for positive psychology?
answered
Jan 20
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Psychology
0
votes
58
views
Why is understanding sexual identity important in psychology?
answered
Jan 20
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Psychology
0
votes
13
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What is the difference between explicit and implicit memory according to the dual-process theory?
answered
Jan 17
in
Psychology
0
votes
30
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According to the interpersonal theory, what is the relationship between interpersonal conflict and anxiety?
answered
Jan 17
in
Psychology
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