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How does the presence of a catalyst affect the equilibrium position of a reversible reaction? Provide an example and explain your answer using Le Chatelier's principle.
asked
3 days
ago
in
Chemical equilibrium
0
votes
1
answer
16
views
What is the optimal reaction conditions, including the amounts of salicylic acid and acetic anhydride, reaction temperature, and reaction time, to produce the highest yield of aspirin in the synthesis of aspirin from salicylic acid and acetic anhydride?
asked
3 days
ago
in
Chemical synthesis
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votes
1
answer
25
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How does the chemical structure and molecular weight of a polymer affect its susceptibility to UV degradation?
asked
Feb 18
in
Polymer Chemistry
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votes
1
answer
35
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What are the possible chemical reactions that occur when microplastics interact with seawater, and how do these reactions affect the toxicity and bioaccumulation of microplastics in marine organisms?
asked
Feb 13
in
Environmental Chemistry
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votes
1
answer
36
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What is the molar mass of iron(III) sulfate hexahydrate?
asked
Feb 13
in
Inorganic Chemistry
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1
answer
53
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How does individual variation in genetic makeup affect the way drugs are metabolized in the body, and how can this information be used to optimize drug therapies for patients with different genetic backgrounds?
asked
Feb 13
in
Medicinal Chemistry
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votes
1
answer
32
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What is the effect of increasing the pH of a solution containing the redox system, Fe2+/ Fe3+ on the equilibrium concentration of Fe2+ at 25°C?
asked
Feb 13
in
Chemical equilibrium
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votes
1
answer
40
views
How can we improve the efficiency of solar cells by synthesizing and characterizing new materials with better photovoltaic properties?
asked
Feb 13
in
Materials Chemistry
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votes
1
answer
62
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How can the synthesis of polyvinyl alcohol from vinyl acetate monomer be optimized to ensure a high yield and purity of the final product?
asked
Feb 11
in
Chemical synthesis
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votes
1
answer
12
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How can the process of drug design and development be optimized to create more effective treatments for inflammatory diseases?
asked
Feb 10
in
Medicinal Chemistry
0
votes
1
answer
37
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How can the coordination compound [Co(NH3)6]Cl3 be synthesized and characterized in the laboratory?
asked
Feb 6
in
Coordination Chemistry
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votes
1
answer
42
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How can computational chemistry be used to predict the binding affinity and selectivity of small molecule inhibitors targeting the interaction between two specific proteins? Compare and contrast the accuracy and limitations of various molecular docking methods in predicting the binding modes and energies of protein-protein interaction inhibitors.
asked
Feb 5
in
Computational Chemistry
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votes
1
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28
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How can novel small molecule inhibitors be designed and synthesized to target specific molecular pathways involved in the development of respiratory diseases such as asthma and chronic obstructive pulmonary disease (COPD)?
asked
Feb 5
in
Medicinal Chemistry
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votes
1
answer
46
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Determine the standard enthalpy of formation for propane (C3H8) using the following values: - C(graphite) + O2(g) → CO2(g) ΔH° = -393.5 kJ/mol- 2H2(g) + O2(g) → 2H2O(l) ΔH° = -572.4 kJ/mol- C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l) ΔH° = -2220 kJ/mol
asked
Feb 4
in
Chemical thermodynamics
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votes
1
answer
50
views
Calculate the heat of crystallization of 5 moles of calcium chloride, given that the enthalpy change of hydration of calcium ions is –1622 kJ/mol and that of chloride ions is –364 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
12
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When can self-actualisation be achieved, according to Maslow?
asked
Jan 17
in
Psychology
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1
answer
30
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When treating PTSD, what is eye movement desensitisation and reprocessing?
asked
Jan 17
in
Psychology
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votes
1
answer
25
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What is a PAR project?
asked
Jan 17
in
Psychology
0
votes
1
answer
13
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What is the Protection Motivation Theory, and how is it relevant to AI design for emergency response?
asked
Jan 15
in
Psychology
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votes
1
answer
48
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What is the theory of classical conditioning?
asked
Jan 15
in
Psychology
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