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0
votes
33
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How does the size and shape of a molecule or nanostructure affect its electronic transport properties?
answered
Feb 24
in
Quantum Chemistry
0
votes
26
views
What is the most efficient method for synthesizing polyvinyl alcohol using vinyl acetate monomer as the starting material? What are the key factors that affect the yield and properties of the final product, and how can they be optimized?
answered
Feb 21
in
Chemical synthesis
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votes
29
views
How does the magnetic field affect the magnetization of ferromagnetic materials commonly used in data storage devices such as hard drives and magnetic tapes, and how can this understanding be applied to improve the efficiency and capacity of such devices?
answered
Feb 20
in
Materials Chemistry
0
votes
36
views
What is the effect of pressure on the rate of the reaction between hydrogen gas and iodine gas to form hydrogen iodide gas, and how does this effect support or contradict the collision theory of chemical reactions?
answered
Feb 19
in
Chemical kinetics
0
votes
39
views
How does the change in ligands affect the electronic and magnetic properties of transition metal complexes, and what is the theoretical basis for predicting these changes using quantum chemistry methods?
answered
Feb 18
in
Quantum Chemistry
0
votes
67
views
How does surface tension of a liquid vary with temperature and impurity concentration, and how can it be measured accurately using a drop weight or capillary rise method?
answered
Feb 17
in
Surface Chemistry
0
votes
30
views
What is the effect of surface modification on the properties of polyethylene? Specifically, how does the introduction of polar functional groups onto the surface of polyethylene affect its adhesion properties when subjected to water?
answered
Feb 17
in
Surface Chemistry
0
votes
54
views
What is the role of lipoproteins in transporting lipids in the bloodstream and how do their varying densities affect their function?
answered
Feb 13
in
BioChemistry
0
votes
56
views
In the context of chemical bonding, how can a student determine the isomerism of a molecule and what are some examples of isomers?
answered
Feb 13
in
Chemical bonding
0
votes
93
views
How can the synthesis of polyacrylonitrile from acrylonitrile monomer be optimized to obtain a high molecular weight polymer with desirable mechanical and chemical properties for specific applications in the industry?
answered
Feb 11
in
Chemical synthesis
0
votes
41
views
How can the efficiency of solar cells be improved by synthesizing and characterizing new materials with better absorption and charge transport properties?
answered
Feb 7
in
Materials Chemistry
0
votes
87
views
Calculate the standard enthalpy change for the reaction between methane and oxygen to form carbon dioxide and water vapor at 298 K and 1 atm of pressure, given the following reaction equation:CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)The standard enthalpies of formation for CH4(g), CO2(g), and H2O(g) are -74.8 kJ/mol, -393.5 kJ/mol, and -241.8 kJ/mol, respectively.
answered
Feb 3
in
Chemical thermodynamics
0
votes
143
views
How effective are the current environmental regulations in protecting aquatic life from chemical pollutants in bodies of water?
answered
Jan 31
in
Environmental Chemistry
0
votes
96
views
How can acetanilide be converted into 4-bromoacetanilide using bromine as a reagent, and what would be the mechanism of this chemical synthesis reaction?
answered
Jan 30
in
Chemical synthesis
0
votes
90
views
What is the bond order of the nitrogen molecule (N2) according to the molecular orbital theory?
answered
Jan 30
in
Chemical bonding
0
votes
80
views
What are some effective ways for undergraduate chemistry students to gain exposure to current research in the field?
answered
Jan 30
in
Chemical education
0
votes
83
views
What is the binding problem according to feature integration theory?
answered
Jan 20
in
Psychology
0
votes
84
views
When might social facilitation occur?
answered
Jan 20
in
Psychology
0
votes
101
views
According to Eric Kandel's research on memory and learning, how are memories stored in the brain?
answered
Jan 20
in
Psychology
0
votes
50
views
Compare the different stages of moral development according to Lawrence Kohlberg.
answered
Jan 20
in
Psychology
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