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1
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34
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How does the molecular weight of a polymer affect its physical properties?
asked
Feb 21
in
Physical Chemistry
0
votes
1
answer
32
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What is the correlation between the chemical structure of existing drugs and their toxicity levels, and how can we use this information to develop safer drugs with similar therapeutic properties?
asked
Feb 19
in
Medicinal Chemistry
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votes
1
answer
39
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How does the changing polarity of a solvent affect the rate of a photochemical reaction for a specific reactant under UV light?
asked
Feb 18
in
PhotoChemistry
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1
answer
37
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How can we optimize the drug design process to create new and effective treatments for viral infections that target specific viral proteins or enzymes without harming human cells?
asked
Feb 14
in
Medicinal Chemistry
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votes
1
answer
75
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How can the properties of coordination polymers and metal-organic frameworks be tuned to optimize their performance as catalysts in industrial processes?
asked
Feb 10
in
Coordination Chemistry
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1
answer
40
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How can the photochemical degradation of pollutants in the environment be optimized using titanium dioxide as a photocatalyst?
asked
Feb 10
in
PhotoChemistry
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votes
1
answer
50
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How can the addition of different types of metal ions to polymer electrolytes impact the performance and efficiency of lithium-ion batteries?
asked
Feb 6
in
Polymer Chemistry
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1
answer
39
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How can chemistry teachers provide adequate support for students with learning disabilities to ensure they have equal opportunities to learn and succeed in chemistry lessons?
asked
Feb 5
in
Chemical education
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votes
1
answer
88
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Design a biodegradable polymer-based scaffold to facilitate the regeneration of damaged cartilage. Include the synthesis and characterization of the polymer and provide evidence for its effectiveness in supporting the growth of chondrocytes (cartilage cells).
asked
Feb 3
in
Polymer Chemistry
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votes
1
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88
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Calculate the standard enthalpy of formation of methane (CH4) given the following enthalpy data: C(graphite) + 2H2(g) → CH4(g) ΔH° = -74.8 kJ/mol ΔH°f[C(graphite)] = 0 kJ/molΔH°f[H2(g)] = 0 kJ/mol (Hint: Use Hess's Law and the fact that the standard enthalpy of formation of an element in its most stable state is zero.)
asked
Feb 3
in
ThermoChemistry
0
votes
1
answer
139
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What is the concentration of iron (II) ions in a sample of tap water? Use colorimetry to determine the absorbance of the sample and compare it to a standard calibration curve for iron (II) ions.
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
83
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Calculate the bond energy required to break the bond between atoms A and B in a molecule of AB, given the following information: the bond length between A and B is 0.1 nm and the energy required to break one mole of AB molecules is 500 kJ/mol.
asked
Jan 23
in
Chemical reactions
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1
answer
64
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A chemical mixture containing 30% ethanol and 70% water needs to be separated using a distillation column. The feed rate is 1000 kg/hr and the desired purity for both products is 99%. The distillation column has 20 theoretical trays, and the reflux ratio is 2.5. Determine the number of trays required to achieve the desired purity for both products.
asked
Jan 22
in
Chemical engineering
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votes
1
answer
35
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When was the study on Self-Compassion conducted?
asked
Jan 20
in
Psychology
0
votes
1
answer
52
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Who conducted the bystander intervention experiment?
asked
Jan 17
in
Psychology
0
votes
1
answer
46
views
What is an independent variable in an experiment?
asked
Jan 17
in
Psychology
0
votes
0
answers
88
views
Who proposed the biopsychosocial model of pain?
asked
Jan 16
in
Psychology
0
votes
1
answer
71
views
What is the Cognitive-Social Health Information Processing Model?
asked
Jan 15
in
Psychology
0
votes
1
answer
52
views
According to the scatter plot, what does the slope of the line of best fit indicate?
asked
Jan 15
in
Psychology
0
votes
1
answer
122
views
What is meant by the term 'TMS'?
asked
Jan 15
in
Psychology
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