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37
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What is the relationship between the electronic excited states and the optical properties of a certain molecule, and how can this be calculated using quantum chemistry methods?
answered
Feb 24
in
Quantum Chemistry
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votes
26
views
What is the most efficient method to prepare 2-chloro-4-nitroaniline from aniline and chlorine gas while ensuring optimal yield and purity of the final product?
answered
Feb 21
in
Chemical synthesis
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votes
36
views
What is the most effective method for the remediation of a chlorinated solvent plume in a groundwater system, and how can it be optimized?
answered
Feb 21
in
Environmental Chemistry
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votes
24
views
What is the molecular geometry of the molecule SF6?
answered
Feb 21
in
Chemical bonding
0
votes
30
views
What is the effect of temperature on the surface tension of water and how can it be measured experimentally?
answered
Feb 20
in
Surface Chemistry
0
votes
30
views
What is the effect of catalyst particle size on the rate of a heterogeneous catalytic reaction and how does it relate to the mechanism of the reaction?
answered
Feb 19
in
Surface Chemistry
0
votes
38
views
What are the photochemical properties of spiropyran and how do these properties relate to its photochromic behavior?
answered
Feb 14
in
PhotoChemistry
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votes
60
views
What are the coordination chemistry principles behind the effectiveness of chelation therapy in treating heavy metal poisoning, and how can these principles be applied to develop more efficient chelating agents for this purpose?
answered
Feb 12
in
Coordination Chemistry
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votes
37
views
How can the performance of polymer-based membranes be improved for water treatment applications in terms of permeability and selectivity?
answered
Feb 10
in
Polymer Chemistry
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votes
35
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How can the efficiency of the production process for synthetic detergents be improved to reduce overall costs and increase yield?
answered
Feb 7
in
Chemical engineering
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52
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Calculate the standard free energy change for the following redox reaction:2Fe^2+ (aq) + H2O2 (aq) + 2H+ (aq) -> 2Fe^3+ (aq) + 2H2O (l) Given the following reduction potentials at standard conditions:Fe3+ (aq) + e- -> Fe2+ (aq) E° = 0.77 VH2O2 (aq) + 2H+ (aq) + 2e- -> 2H2O (l) E° = 1.78 V
answered
Feb 3
in
Chemical thermodynamics
0
votes
90
views
How does changes in pH affect the stability and coagulation of a colloidal solution?
answered
Jan 31
in
Surface Chemistry
0
votes
101
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Can you propose a suitable reaction mechanism for the preparation of 2,4-dinitrophenol from phenol and nitric acid, and explain the key reaction steps and intermediates involved?
answered
Jan 31
in
Chemical synthesis
0
votes
86
views
What is the pH of a 0.01 M solution of HCl? Use a pH meter to determine the pH of the solution and explain the procedure you used to obtain the result.
answered
Jan 31
in
Analytical Chemistry
0
votes
99
views
Where did Virginia Satir develop her family systems therapy approach?
answered
Jan 20
in
Psychology
0
votes
65
views
When did partial least squares regression become more widely used?
answered
Jan 20
in
Psychology
0
votes
70
views
How does nicotine affect the brain?
answered
Jan 20
in
Psychology
0
votes
52
views
Who proposed the theory of cognitive load?
answered
Jan 15
in
Psychology
0
votes
43
views
What is acute stress?
answered
Jan 14
in
Psychology
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47
views
What is reliability?
answered
Jan 14
in
Psychology
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