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0
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32
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How does the photochemical properties of dyes and pigments affect their color stability under sunlight exposure?
answered
Feb 22
in
PhotoChemistry
0
votes
32
views
How does the binding affinity between a protein and a small molecule ligand change when the temperature is increased in a molecular dynamics simulation?
answered
Feb 17
in
Computational Chemistry
0
votes
52
views
How do intermolecular interactions and solvation effects influence the solubility of ionic compounds in polar solvents?
answered
Feb 13
in
Quantum Chemistry
0
votes
30
views
How does the presence of cholesterol affect the signaling and metabolism of lipids in cells? Provide a detailed explanation of the molecular mechanisms involved and their potential implications on cellular function.
answered
Feb 12
in
BioChemistry
0
votes
39
views
How can the photochemical properties of supramolecular assemblies be manipulated by varying the composition of the assembly?
answered
Feb 10
in
PhotoChemistry
0
votes
24
views
How can the composition of metal alloys be optimized to enhance their strength, durability, and resistance to high temperatures for aerospace applications?
answered
Feb 6
in
Materials Chemistry
0
votes
62
views
Determine the oxidation state of the following elements in the compound potassium permanganate (KMnO4): a) Potassium b) Manganese c) Oxygen
answered
Feb 4
in
ElectroChemistry
0
votes
89
views
Calculate the polarization that occurs in an electrochemical cell when a current of 2 A flows through it for 10 minutes. The electrode area is 25 cm², and the current efficiency is 95%. The activation energy is 80 kJ/mol, and the reaction quotient is 2.5 x 10⁻⁵. The temperature of the cell is 25°C. Find the polarization resistance and the total polarization of the cell.
answered
Feb 3
in
ElectroChemistry
0
votes
55
views
Calculate the pH of a buffer solution made by combining equal volumes of 0.1 M acetic acid and 0.1 M sodium acetate. The dissociation constant of acetic acid is 1.8 × 10^-5.
answered
Feb 3
in
Chemical reactions
0
votes
102
views
What is the standard enthalpy change for the combustion of methane (CH4) gas to form carbon dioxide (CO2) gas and water (H2O) at 298 K? Use quantum chemistry calculations to determine the necessary thermodynamic properties of CH4, CO2, and H2O to solve the problem.
answered
Jan 31
in
Quantum Chemistry
0
votes
71
views
Calculate the cell potential for the following electrochemical reaction: Cu(s) + 2 Ag⁺(aq) → Cu²⁺(aq) + 2 Ag(s) Given that the standard reduction potentials are: Cu²⁺(aq) + 2e⁻ → Cu(s) E° = +0.34 V Ag⁺(aq) + e⁻ → Ag(s) E° = +0.80 V
answered
Jan 23
in
ElectroChemistry
0
votes
108
views
A chemistry student is given an unknown compound and asked to identify it using mass spectrometry. The mass spectrum of the compound shows a molecular ion peak at m/z 150, a base peak at m/z 135, and a few smaller peaks at m/z 91, 77, and 65. What is the possible molecular formula of the unknown compound?
answered
Jan 22
in
Analytical Chemistry
0
votes
124
views
Balance the following chemical equation for the inorganic compound calcium hydroxide reacting with hydrochloric acid: Ca(OH)2 + HCl -> CaCl2 + H2O
answered
Jan 21
in
Inorganic Chemistry
0
votes
80
views
According to the classical test theory, what is true score?
answered
Jan 20
in
Psychology
0
votes
101
views
What is tip-of-the-tongue phenomenon?
answered
Jan 20
in
Psychology
0
votes
97
views
According to social dominance theory, why do men continue to hold more power than women?
answered
Jan 20
in
Psychology
0
votes
52
views
Where do theoretical models need to be revised?
answered
Jan 16
in
Psychology
0
votes
83
views
According to the ecological systems theory, what are the five systems that influence development?
answered
Jan 16
in
Psychology
0
votes
43
views
What is a criticism of the cultural psychology perspective?
answered
Jan 16
in
Psychology
0
votes
67
views
According to Freud, why do we have subconscious thoughts?
answered
Jan 15
in
Psychology
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