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What is the effect of the size and shape of nanomaterials on their electronic and optical properties?
answered
Feb 24
in
Quantum Chemistry
1
answer
40
views
What is the rate law for the reaction A + 2B → C, if the reaction is second order with respect to A and first order with respect to B?
answered
Feb 22
in
Physical Chemistry
1
answer
30
views
What is the maximum amount of work that can be obtained from a chemical reaction at constant temperature and pressure, given the Gibbs free energy change of the reaction is -20 kJ/mol?
asked
Feb 20
in
Physical Chemistry
1
answer
29
views
What is the effect of ionic strength on the stability and behavior of colloidal particles and how can it be controlled or manipulated?
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Feb 20
in
Physical Chemistry
1
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27
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How do different metal ions affect the electronic and magnetic properties of metal-organic frameworks, and what is the influence of the organic ligands on these properties?
asked
Feb 20
in
Quantum Chemistry
1
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39
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What is the effect of the chemical structure of various sunscreen agents on their ability to absorb and dissipate UV radiation?
asked
Feb 20
in
PhotoChemistry
1
answer
27
views
What is the bond dissociation energy of the oxygen-oxygen (O-O) bond in O2 molecule? How is this energy related to the strength of the bond between the two oxygen atoms? Provide a detailed explanation.
answered
Feb 18
in
Chemical bonding
1
answer
31
views
What is the effect of surface area and temperature on the adsorption of carbon dioxide (CO2) gas on activated charcoal?
asked
Feb 17
in
Surface Chemistry
1
answer
40
views
How does the addition of different types of surfactants affect the surface tension of water?
answered
Feb 17
in
Surface Chemistry
1
answer
37
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How to optimize the production process of water-based paint by analyzing the characteristics of the raw materials?
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Feb 14
in
Chemical engineering
1
answer
34
views
What type of inorganic solid is magnesium oxide, and how can you justify your answer?
answered
Feb 13
in
Inorganic Chemistry
1
answer
26
views
How can we design drugs that specifically target and treat the symptoms of Parkinson's disease, without causing harmful side effects to healthy neurons in the brain?
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Feb 12
in
Medicinal Chemistry
1
answer
80
views
How can the surface properties of a biopolymer scaffold be modified to improve cell adhesion and proliferation, and overall biocompatibility for tissue engineering applications?
asked
Feb 11
in
Surface Chemistry
1
answer
69
views
How can the properties of adhesives be optimized to achieve maximum bonding strength and durability while minimizing environmental impact during the production process?
answered
Feb 10
in
Chemical engineering
1
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43
views
How can the chemical and engineering principles be integrated to design a system for the recovery of valuable metals such as gold, silver, and copper from electronic waste in the most efficient and cost-effective manner?
answered
Feb 6
in
Chemical engineering
1
answer
96
views
Calculate the standard enthalpy change for the fusion reaction of 50g of ice at 0°C with 450g of liquid water at 25°C. The molar enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/g·°C. Assume there are no heat losses to the surroundings.
answered
Feb 3
in
Chemical thermodynamics
1
answer
117
views
How does altering the pH level affect the equilibrium position of a redox reaction, and what is the relationship between the dissociation constant and pH in such a reaction? Provide an example to explain the concept.
answered
Jan 31
in
Chemical equilibrium
1
answer
105
views
What strategies can chemistry students use to adequately prepare for chemistry exams?
answered
Jan 30
in
Chemical education
1
answer
124
views
What is the composition of a given mineral sample using X-ray diffraction analysis?
answered
Jan 30
in
Analytical Chemistry
1
answer
70
views
Calculate the Gibbs free energy change for the following reaction at 298 K: 2H2(g) + O2(g) → 2H2O(l) Given, ΔH = -483.6 kJ/mol and ΔS = -109.4 J/K/mol.
asked
Jan 23
in
Chemical thermodynamics
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