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1
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3
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How does the prediction of chemical reactivity and selectivity help in designing more efficient and selective chemical reactions?
asked
3 days
ago
in
Quantum Chemistry
0
votes
1
answer
16
views
How do the photochemical properties of fluorescent dyes influence their applications in biological imaging? Provide specific examples of fluorescent dyes and their uses in imaging techniques such as fluorescence microscopy and flow cytometry.
asked
3 days
ago
in
PhotoChemistry
0
votes
1
answer
27
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What is the effect of different solvents with varying polarities on the rate of the photochemical reaction, and how does it correlate with the rate of energy transfer from the excited state of the photoactive molecule to the solvent molecules?
asked
5 days
ago
in
PhotoChemistry
0
votes
1
answer
29
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What natural products can be used for the treatment of a specific disease and what is the mechanism of action of the identified compounds?
asked
Feb 13
in
Medicinal Chemistry
0
votes
1
answer
33
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How does increasing the pH of a redox reaction involving copper ions and iodide ions affect the equilibrium concentration of copper ions and iodine molecules?
asked
Feb 13
in
Chemical equilibrium
0
votes
1
answer
28
views
How can the optical properties of polymers be improved to increase their efficiency as optical waveguides for telecommunications?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
41
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How can the mechanical properties of polyurethane synthesized from diisocyanate and polyol be optimized by varying the reaction conditions such as temperature, reaction time or catalyst type?
asked
Feb 10
in
Chemical synthesis
0
votes
1
answer
49
views
Calculate the standard enthalpy of formation of aluminum oxide from its elements given the following information:2 Al(s) + 3/2 O2(g) → Al2O3(s) ΔH°rxn = - 1675.7 kJ/molStandard enthalpy of formation of Al(s) = 0 kJ/molStandard enthalpy of formation of O2(g) = 0 kJ/mol
asked
Feb 3
in
ThermoChemistry
0
votes
1
answer
49
views
Calculate the standard enthalpy change for the dissolution of 5.36 g of NaOH in 100.0 mL of water, given that the molar enthalpy of dissolution for NaOH is -44.5 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
72
views
What is the role of carbohydrate-protein interactions in the recognition of cell surface receptors and how does the specific structure of carbohydrates contribute to this recognition process?
asked
Jan 31
in
BioChemistry
0
votes
1
answer
69
views
How effective have environmental regulations been in controlling the release of hazardous chemicals into water bodies and protecting marine life in the United States?
asked
Jan 31
in
Environmental Chemistry
0
votes
1
answer
48
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Calculate the heat of mixing when 50.0 mL of 1.00 M HCl is added to 50.0 mL of 1.00 M NaOH at 25°C. The heat capacity of the solution is 4.18 J/(g·°C) and the density of the final solution is 1.00 g/mL. Assume that the heat change is equal to the enthalpy change.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
54
views
Calculate the bond order and bond length of the N-O bond in nitric oxide (NO) using molecular orbital theory.
asked
Jan 23
in
Inorganic Chemistry
0
votes
1
answer
96
views
A chemistry student needs to calculate the concentration of copper(II) ions in a 250 mL solution, given that a current of 1.5 A was applied for 60 minutes to a copper electrode in contact with the solution. The initial concentration of copper(II) ions was 0.05 M, and the Faraday constant is 96,485 C/mol. What is the final concentration of copper(II) ions in the solution?
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
42
views
Who developed grounded theory?
asked
Jan 15
in
Psychology
0
votes
1
answer
33
views
Which ductless gland releases secretions directly into surrounding tissues and fluids?
asked
Jan 8
in
Science
0
votes
1
answer
40
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What term in physics refers to the use of force to move an object?
asked
Jan 7
in
Science
0
votes
1
answer
38
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What organizational tool, arguably the best in all of science, lists all the known chemical elements, arranged by atomic number?
asked
Jan 7
in
Science
0
votes
1
answer
16
views
What is the term for a random change in allele frequencies that occurs in a small population?
asked
Jan 7
in
Science
0
votes
1
answer
63
views
What is the name of the process that refers to the balance or equilibrium within the cell or a body?
asked
Jan 7
in
Science
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