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Recent activity by PDQJenifer7
1
answer
63
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How does the size and shape of a molecule affect its ability to transport charge or energy in the nanoscale system?
answered
Feb 24
in
Quantum Chemistry
1
answer
34
views
What are the significant discoveries and contributions of the early chemists in the evolution of chemistry, and how did they impact the development of modern chemistry?
asked
Feb 24
in
Chemical education
1
answer
37
views
How does the presence of entanglement and coherence affect the physical and chemical properties of molecular and nanoscale systems, and how can this knowledge be applied in the development of new materials and technologies?
answered
Feb 22
in
Quantum Chemistry
1
answer
28
views
What is the effect of particle size on the surface structure and reactivity of copper nanoparticles?
asked
Feb 22
in
Computational Chemistry
1
answer
37
views
What is the optimum reaction conditions (temperature, pressure, and reactant ratio) for synthesizing nylon-6,6 from adipic acid and hexamethylenediamine to achieve the highest yield and quality of the product?
answered
Feb 22
in
Chemical synthesis
1
answer
26
views
What is the effect of the length of a conjugated polymer chain on its electronic and optical properties?
answered
Feb 20
in
Quantum Chemistry
1
answer
27
views
What is the effect of pressure on the rate of the reaction between hydrogen gas and iodine gas, and how can this effect be explained by collision theory?
asked
Feb 19
in
Chemical kinetics
1
answer
27
views
What is the crystal structure of NaCl? How does it affect the physical properties of NaCl, such as its melting point and solubility, and what is the significance of this crystal structure in industrial applications of NaCl?
asked
Feb 19
in
Physical Chemistry
1
answer
35
views
How does the coordination chemistry of metalloenzymes and metalloproteins affect their biological function?
asked
Feb 19
in
Coordination Chemistry
1
answer
34
views
How does the addition of an external magnetic field affect the electronic and magnetic properties of a molecular magnet?
asked
Feb 17
in
Quantum Chemistry
1
answer
35
views
How does the acidity of phenols differ from that of alcohols and what is the reason behind it? Provide a rationale for your answer.
answered
Feb 17
in
Organic Chemistry
1
answer
26
views
How does Plasma Treatment affect the Surface Energy of Polymers?
answered
Feb 14
in
Surface Chemistry
1
answer
50
views
How does hydrogen bonding affect the properties and interactions of biomolecules such as proteins and nucleic acids in bioorganic chemistry? Provide specific examples to support your answer.
asked
Feb 13
in
Organic Chemistry
1
answer
69
views
How can we develop a method for the synthesis of nanoparticles that allows for precise control over their size, shape, and composition to optimize their properties for specific applications in catalysis, optics, or medicine?
answered
Feb 12
in
Materials Chemistry
1
answer
60
views
How can the mechanical and thermal properties of polymer-based composites be optimized to meet the specific demands of aerospace applications such as aircraft structures, components, and equipment? Consider the effects of different types of fillers, matrix materials, processing techniques, and environmental conditions on the performance of the composites. Recommend an ideal polymer-based composite that can provide high strength, stiffness, toughness, and heat resistance for use in aerospace engineering.
answered
Feb 10
in
Polymer Chemistry
1
answer
29
views
How can the chemical engineers design and optimize a system to produce the flavor compounds of a specific fruit, while considering factors such as raw material selection, reaction conditions, separation techniques, and cost-effectiveness?
asked
Feb 6
in
Chemical engineering
1
answer
39
views
How can polymer-based sensors be utilized to detect specific gases in an industrial process environment?
asked
Feb 5
in
Polymer Chemistry
1
answer
76
views
Determine the bond order of the molecule CO using molecular orbital theory. Show all the molecular orbital diagrams and explain why the molecule is or is not expected to be stable.
asked
Feb 4
in
Chemical bonding
1
answer
38
views
Consider the reaction of hydrogen gas (H2) and iodine gas (I2) to form hydrogen iodide (HI) at a certain temperature. If the initial concentrations of hydrogen and iodine are [H2] = 0.5 M and [I2] = 0.3 M, and the equilibrium concentration of hydrogen iodide is [HI] = 0.1 M, what is the value of the reaction quotient (Qc) for this reaction at this temperature?
asked
Feb 3
in
Chemical thermodynamics
1
answer
76
views
Calculate the standard enthalpy change for the vaporization of 100 g of water at 100°C given that the enthalpy of vaporization of water is 40.7 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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