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1
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What are the optimal reaction conditions and steps required for the preparation of high-yield phenylalanine from benzyl chloride and ammonia using chemical synthesis techniques?
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
19
views
What is the electrical conductivity of sodium chloride in water at various concentrations and temperatures? How does the conductivity change with the concentration of the salt and the temperature of the solution?
asked
5 days
ago
in
Inorganic Chemistry
0
votes
1
answer
31
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What is the balanced chemical equation for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine, and what is the theoretical yield of nylon-6,6 that can be produced from a given amount of starting materials?
asked
Feb 17
in
Chemical synthesis
0
votes
1
answer
34
views
How does the process of protein degradation and turnover occur in a cell and what are the specific mechanisms involved in the breakdown of various types of proteins, including enzymes and structural proteins, in both normal and aberrant conditions?
asked
Feb 14
in
BioChemistry
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votes
1
answer
44
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How can the principles of medicinal chemistry be applied to design new drugs for the treatment of metabolic disorders such as obesity, diabetes, and hyperlipidemia? Specifically, what structural features or modifications in the chemical structure of existing drugs can enhance their efficacy and specificity towards the molecular targets involved in these disorders?
asked
Feb 10
in
Medicinal Chemistry
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votes
1
answer
44
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How can the physical and chemical properties of polymers be optimized to create a durable, lightweight and cost-effective packaging material for food and beverages?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
30
views
How can the photochemical properties of photovoltaic materials be optimized to improve the efficiency of solar cells?
asked
Feb 10
in
PhotoChemistry
0
votes
1
answer
38
views
How can the mechanical and chemical properties of polymer-based biomaterials for tissue engineering be optimized to enhance their compatibility with biological tissues and improve their long-term performance as implantable devices?
asked
Feb 7
in
Polymer Chemistry
0
votes
1
answer
11
views
Design a retrosynthesis pathway for the synthesis of ibuprofen from starting materials that have no more than 6 carbons.
asked
Feb 4
in
Organic Chemistry
0
votes
1
answer
63
views
Calculate the standard enthalpy change for the phase transition reaction where 100.0 grams of solid water (ice) at -10.0 °C is heated to form 100.0 grams of liquid water at 10.0 °C, given the specific heat capacities of ice and water are 2.09 J/g·°C and 4.18 J/g·°C, respectively, and the enthalpy of fusion of water is 6.01 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
54
views
How can the composition of a protein sample be determined using electrophoresis? Discuss the different types of electrophoresis techniques and their applications in protein analysis. Additionally, provide an example of a real-life application of electrophoresis in protein analysis.
asked
Jan 29
in
Analytical Chemistry
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votes
1
answer
81
views
A chemical engineer wants to separate a mixture of ethanol and methanol using a distillation column. The feed to the column contains 30% ethanol and 70% methanol by mole. The engineer wants to obtain a distillate with 80% ethanol and a bottoms product containing no more than 1% ethanol. Determine the number of trays required in the distillation column to achieve this separation. Consider only equilibrium stages and assume that the feed is saturated liquid at its boiling point. The operating pressure of the column is 1 atm.
asked
Jan 22
in
Chemical engineering
0
votes
1
answer
47
views
Who is more likely to be influenced by groupthink?
asked
Jan 20
in
Psychology
0
votes
0
answers
22
views
How might attribution theory impact end-of-life decision-making?
asked
Jan 17
in
Psychology
0
votes
1
answer
28
views
How can the theory of mind be evaluated?
asked
Jan 16
in
Psychology
0
votes
1
answer
28
views
Where can you find empirical evidence for the role of social change in masculinity?
asked
Jan 15
in
Psychology
0
votes
1
answer
41
views
What does the bottom-up theory state?
asked
Jan 15
in
Psychology
0
votes
1
answer
34
views
What is the relationship between depression and nutrition?
asked
Jan 14
in
Psychology
0
votes
1
answer
45
views
How do absolute threshold and difference threshold differ?
asked
Jan 14
in
Psychology
0
votes
1
answer
46
views
What is the difference between self-verification and self-enhancement?
asked
Jan 13
in
Psychology
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