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What is the optimal temperature and pressure for the production of cinnamon flavor using a batch reactor design, and how can the reaction be scaled up for commercial production while maintaining quality and yield?
asked
Feb 22
in
Chemical engineering
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votes
1
answer
37
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What is the optimal concentration of nitric acid and sulfuric acid in the preparation of 2,4,6-trinitrotoluene from toluene to achieve the highest yield and purity of the final product?
asked
Feb 21
in
Chemical synthesis
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votes
1
answer
30
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What is the mechanism of protein binding to DNA in regulating gene expression?
asked
Feb 20
in
BioChemistry
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1
answer
29
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Identify the type of inorganic compound formed between Nitrogen and Oxygen in nitrous oxide (N2O)? Is it ionic, covalent or metallic?
asked
Feb 20
in
Inorganic Chemistry
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1
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36
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How does the coordination environment of the metal in metalloenzymes and metalloproteins affect their activity and specificity for substrate binding? Provide specific examples from the literature to support your answer.
asked
Feb 19
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Coordination Chemistry
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1
answer
33
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How can we predict the selectivity of a chemical reaction based on the electronic structure of reactants?
asked
Feb 14
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Quantum Chemistry
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1
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60
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What is the net ATP produced by the glycolytic pathway in the absence of oxygen, and what are the differences between the regulation of glycolysis and gluconeogenesis?
asked
Feb 13
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BioChemistry
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1
answer
50
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How can magnetic nanoparticles be synthesized and characterized for efficient drug delivery?
asked
Feb 5
in
Materials Chemistry
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1
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77
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Calculate the standard enthalpy and entropy change for the reaction, given the following information:2 H2(g) + O2(g) → 2 H2O(g)∆H°f [H2O(g)] = -241.8 kJ/mol∆H°f [H2(g)] = 0 kJ/mol∆H°f [O2(g)] = 0 kJ/mol∆S° [H2O(g)] = 188.8 J/Kmol∆S° [H2(g)] = 130.7 J/Kmol∆S° [O2(g)] = 205.2 J/KmolAssuming that all heat capacities are independent of temperature, calculate ∆S°rxn and ∆H°rxn for this reaction.
asked
Feb 3
in
Inorganic Chemistry
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1
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98
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How do bioluminescent organisms such as fireflies and jellyfish use photochemistry to produce light? What are the specific photochemical properties and reactions that occur within these organisms' cells to generate bioluminescence? How can this knowledge of photochemistry in bioluminescent organisms be applied in the development of new bioluminescent materials or technologies?
asked
Jan 31
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PhotoChemistry
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1
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84
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What is the concentration of chloride ions in a sample of seawater, and how can it be determined using an ion-selective electrode?
asked
Jan 30
in
Analytical Chemistry
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1
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59
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How can the concentration of copper (II) ions in a water sample be quantified using colorimetry?
asked
Jan 29
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Analytical Chemistry
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62
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How can Raman spectroscopy be utilized to identify the presence of a specific compound in a sample, and what are the advantages of using Raman spectroscopy compared to other analytical methods?
asked
Jan 29
in
Analytical Chemistry
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1
answer
56
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A student wants to determine the specific surface area of a solid sample using gas adsorption. The sample has a mass of 1 gram and the adsorption isotherm follows the BET model. The student measures the volume of nitrogen gas adsorbed at different pressures and obtains the following data:Pressure (torr) | Volume of nitrogen (cm3)---------------|----------------------- 50 | 24.51 100 | 39.22 200 | 67.38 300 | 90.86 400 | 104.29What is the specific surface area of the sample based on the BET model?
asked
Jan 22
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Surface Chemistry
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1
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39
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Who is considered the father of psychology?
asked
Jan 20
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Psychology
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1
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56
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When did the DSM-III introduce the concept of specific learning disorders?
asked
Jan 20
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Psychology
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1
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116
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Who developed the Behavioural Activation therapy and what were its main assumptions?
asked
Jan 20
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Psychology
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1
answer
17
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Where did Aaron Beck develop the cognitive therapy approach?
asked
Jan 17
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Psychology
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1
answer
49
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What is the difference between a simple correlation and a partial correlation?
asked
Jan 17
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Psychology
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1
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83
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According to the cognitive-behavioural approach, what is the relationship between thoughts, feelings, and behaviour?
asked
Jan 16
in
Psychology
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