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1
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How does the size and shape of a graphene nanoribbon affect its electronic band structure and optical properties, and how can these properties be optimized for potential use in electronic or photonic applications?
asked
1 day
ago
in
Quantum Chemistry
0
votes
1
answer
26
views
How does the presence of heavy metals, such as iron and aluminum, in acid mine drainage affect the acidity and overall water quality of surrounding bodies of water, and what steps can be taken to mitigate these impacts?
asked
3 days
ago
in
Environmental Chemistry
0
votes
1
answer
20
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How does the concentration of photosensitizer affect the rate of a photochemical reaction?
asked
6 days
ago
in
PhotoChemistry
0
votes
1
answer
37
views
How can chemistry teachers provide hands-on experiences to students in remote learning environments where in-person laboratory access is limited?
asked
Feb 5
in
Chemical education
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votes
1
answer
40
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How can chemistry teachers provide better support for students with learning disabilities in the classroom to ensure they have equal access to learning opportunities and achieve success in the subject?
asked
Feb 5
in
Chemical education
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votes
1
answer
31
views
How can practical applications of chemistry be incorporated into the classroom to enhance the understanding and appreciation of the subject among students? Provide specific examples and explain how they can be implemented.
asked
Feb 5
in
Chemical education
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votes
1
answer
28
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How can chemistry students get access to the latest research in the field and broaden their knowledge beyond what is taught in the classroom?
asked
Feb 5
in
Chemical education
0
votes
1
answer
72
views
Design a distillation column for the separation of a binary mixture consisting of ethanol and water. The feed mixture contains 40 mol% ethanol and 60 mol% water, and the desired product purity is 95 mol% ethanol. The feed rate is 1000 kg/hr and the column should operate at atmospheric pressure. Calculate the number of theoretical plates required to achieve the desired separation and determine the corresponding height and diameter of the column.
asked
Feb 3
in
Chemical engineering
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votes
1
answer
53
views
How does changing the molecular geometry affect the electronic excited states and optical properties of a molecule?
asked
Feb 3
in
Quantum Chemistry
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votes
1
answer
64
views
Calculate the number of electrons transferred when a solution containing 0.50 mol of HCl reacts with 0.50 mol of NaOH in a redox reaction.
asked
Jan 30
in
ElectroChemistry
0
votes
1
answer
41
views
Calculate the enthalpy of combustion of methane gas (CH4), given that the heat released when 1.0 g of methane completely burns in excess oxygen is -890 kJ.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
80
views
Determine the balanced chemical equation for the reaction between sulfuric acid and sodium hydroxide to produce sodium sulfate and water.
asked
Jan 21
in
Inorganic Chemistry
0
votes
1
answer
12
views
Who developed the concept of the signature strengths?
asked
Jan 20
in
Psychology
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votes
1
answer
35
views
Who proposed the theory of moral development?
asked
Jan 20
in
Psychology
0
votes
1
answer
32
views
Who is credited with the development of confirmatory factor analysis?
asked
Jan 17
in
Psychology
0
votes
1
answer
13
views
According to the trichromatic theory, why do we perceive yellow when we see light with equal amounts of red and green wavelengths?
asked
Jan 17
in
Psychology
0
votes
1
answer
47
views
According to the trichromatic theory, how many types of color receptors are there in the retina?
asked
Jan 17
in
Psychology
0
votes
1
answer
30
views
What are the underlying principles of CBT?
asked
Jan 16
in
Psychology
0
votes
1
answer
13
views
What is the concept of demand characteristics in research?
asked
Jan 15
in
Psychology
0
votes
1
answer
14
views
According to Martin Seligman's learned helplessness theory, why do some people experience depression?
asked
Jan 15
in
Psychology
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