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0
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39
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What is the mechanism for the reaction between ethanoic anhydride and water to form ethanoic acid? Provide a step-by-step explanation and include any intermediate products.
answered
Feb 22
in
Organic Chemistry
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votes
26
views
How do the electronic properties of a molecule or material affect its behavior under light irradiation, and what are the mechanisms underlying photochemical reactions and photophysical processes in such systems, as studied in quantum chemistry?
answered
Feb 20
in
Quantum Chemistry
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votes
39
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What is the effect of solvent polarity on the excited state dynamics of a given molecule, as predicted through ab initio calculations?
answered
Feb 19
in
Computational Chemistry
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votes
27
views
What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) in a 0.1 M NaCl solution, and how does it vary with temperature?
answered
Feb 19
in
Surface Chemistry
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votes
29
views
What is the balanced chemical equation for the complete combustion reaction of propane gas (C3H8) with excess oxygen gas (O2)?
answered
Feb 17
in
Chemical reactions
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votes
37
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How does the absorption of light by metal complexes influence their photochemical properties, and how can this knowledge be applied to improve the efficiency of light-sensitive devices such as solar cells?
answered
Feb 17
in
PhotoChemistry
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votes
31
views
How do different surfactants in cleaners and detergents affect the surface tension of water?
answered
Feb 17
in
Surface Chemistry
0
votes
37
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How can the performance of Metal-Organic Frameworks (MOFs) be improved for selective gas adsorption applications?
answered
Feb 10
in
Coordination Chemistry
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votes
65
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Calculate the standard enthalpy change for the combustion of ethane (C2H6) gas to form carbon dioxide (CO2) gas and water (H2O) vapor at 298 K and 1 atm. The balanced chemical equation for the reaction is: C2H6(g) + 3.5 O2(g) → 2 CO2(g) + 3H2O(g) Given that the standard enthalpy of formation for C2H6(g) is -84.68 kJ/mol, CO2(g) is -393.51 kJ/mol, and H2O(g) is -241.82 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
81
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How does changing the pH of a solution affect the equilibrium position of a weak acid-base reaction? Provide an example to support your answer.
answered
Feb 3
in
Chemical equilibrium
0
votes
101
views
What is the role of ATP synthase in the oxidative phosphorylation process of the citric acid cycle? How does it contribute to the production of ATP molecules in the cell?
answered
Jan 31
in
BioChemistry
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votes
92
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A chemistry student wants to mix 50 mL of water at 25°C with 50 mL of ethanol at 25°C to make a solution. The heat of mixing for water and ethanol is -21.2 kJ/mol. Calculate the heat (in kJ) absorbed or released when the two liquids are mixed. (Assume the densities of water and ethanol are approximately 1 g/mL and 0.8 g/mL, respectively.)
answered
Jan 22
in
ThermoChemistry
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votes
86
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Who proposed the interpersonal theory of bulimia nervosa?
answered
Jan 20
in
Psychology
0
votes
85
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What is a theoretical model, and how is it different from a theory?
answered
Jan 16
in
Psychology
0
votes
65
views
Who developed the theory of Self-Efficacy?
answered
Jan 15
in
Psychology
0
votes
37
views
When do we perceive size constancy?
answered
Jan 15
in
Psychology
0
votes
65
views
What is personality?
answered
Jan 15
in
Psychology
0
votes
39
views
What is the ingroup bias?
answered
Jan 14
in
Psychology
0
votes
37
views
What is the difference between reliability and validity in psychological research?
answered
Jan 13
in
Psychology
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votes
38
views
What is the null hypothesis?
answered
Jan 13
in
Psychology
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