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1
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How does the reaction rate affect the selectivity of the reaction between ethanol and acetic acid, and what are the mechanisms involved in the formation of the products?
asked
3 days
ago
in
Chemical kinetics
0
votes
1
answer
22
views
What is the glass transition temperature of polyvinyl chloride (PVC) and how does it affect its mechanical properties?
asked
5 days
ago
in
Physical Chemistry
0
votes
1
answer
18
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What is the detailed mechanism of the electrophilic aromatic substitution reaction of nitration using nitric acid and sulfuric acid as the reagents on benzene?
asked
5 days
ago
in
Organic Chemistry
0
votes
1
answer
23
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What is the effect of temperature on the conductivity of 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]) ionic liquid?
asked
6 days
ago
in
Physical Chemistry
0
votes
1
answer
7
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What chemical process steps are required for the large-scale production of a specific pharmaceutical drug, and what are the key variables to consider in optimizing these steps for efficiency and quality?
asked
Feb 18
in
Chemical engineering
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votes
1
answer
11
views
How can the principles of medicinal chemistry be applied to design drugs that can effectively target and treat genetic disorders such as cystic fibrosis or sickle cell anemia?
asked
Feb 10
in
Medicinal Chemistry
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votes
1
answer
33
views
How can the efficiency of the process for the production of fragrance be improved while minimizing environmental impact and reducing costs?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
54
views
Determine the heat capacity of aluminum if 50.0 g of the metal is heated from 25°C to 75°C using 100.0 J of heat energy.
asked
Feb 4
in
Chemical thermodynamics
0
votes
1
answer
52
views
How can the concentration of copper (II) ions in a water sample be quantified using colorimetry?
asked
Jan 29
in
Analytical Chemistry
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votes
1
answer
59
views
How can electrophoresis be used to analyze the protein composition of a given sample? What are the advantages and disadvantages of using electrophoresis over other analytical techniques for protein analysis? How can electrophoresis be optimized to provide the most accurate and reliable results? What are some common challenges or limitations associated with electrophoretic techniques, and how can they be overcome?
asked
Jan 29
in
Analytical Chemistry
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votes
1
answer
56
views
Calculate the enthalpy change for the dissolution of 10 grams of sodium hydroxide in excess water, given that the solution formed has a final temperature of 25°C, and the specific heat capacity of the solution is 4.184 J/(g°C). The molar enthalpy of dissolution of NaOH is -44 kJ/mol. Assume that the density of the solution is equal to that of water.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
65
views
Calculate the bond dissociation energy (in kJ/mol) of the H-Cl bond in hydrogen chloride molecule, given that the bond length is 127 pm and the vibrational frequency is 8.8 x 10^13 Hz.
asked
Jan 23
in
Chemical bonding
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votes
1
answer
9
views
Why is the Flynn effect significant?
asked
Jan 20
in
Psychology
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votes
1
answer
68
views
What insights do we get on the relationship between mental imagery and perception from Behrmann and colleagues' study?
asked
Jan 17
in
Psychology
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votes
1
answer
68
views
Compare and contrast the concepts of internal and external validity in theory evaluation
asked
Jan 16
in
Psychology
0
votes
1
answer
53
views
What is the difference between efficacy and effectiveness?
asked
Jan 16
in
Psychology
+1
vote
1
answer
10
views
When evaluating a theory in existential psychology, what is the importance of considering the limitations?
asked
Jan 16
in
Psychology
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votes
1
answer
46
views
According to Gardner's theory of multiple intelligences, what type of intelligence is related to natural history?
asked
Jan 15
in
Psychology
0
votes
1
answer
27
views
How does the multimodal model of memory explain memory processes?
asked
Jan 15
in
Psychology
0
votes
1
answer
34
views
What is nociceptive pain?
asked
Jan 15
in
Psychology
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