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1
answer
33
views
How does the selectivity of hydrocarbon oxidation on a metal surface vary with changes in temperature, pressure, and gas composition?
asked
Feb 24
in
Surface Chemistry
1
answer
37
views
What are the products of the reaction between sodium hydroxide and copper (II) sulfate?
asked
Feb 22
in
Inorganic Chemistry
1
answer
29
views
What is the mechanism of the reaction for the preparation of 4-bromoacetanilide from acetanilide and bromine? Provide a detailed step-by-step process with energy changes and intermediate formation.
answered
Feb 22
in
Chemical synthesis
1
answer
29
views
What is the effect of pH on the zeta potential of colloidal particles, and how can this be measured using a zeta potential analyzer?
answered
Feb 22
in
Surface Chemistry
1
answer
33
views
What is the optimal temperature range for the synthesis of polyethylene oxide from ethylene oxide monomer, and how does changing the temperature affect the yield and molecular weight of the product?
answered
Feb 22
in
Chemical synthesis
1
answer
26
views
What is the most efficient process for the industrial production of a food additive such as xanthan gum, which meets all necessary standards and regulations for food safety and quality?
answered
Feb 21
in
Chemical engineering
1
answer
31
views
What is the most efficient polymer-based drug delivery system for delivering chemotherapy agents to solid tumors?
answered
Feb 21
in
Polymer Chemistry
1
answer
31
views
How does the concentration of reaction products affect the rate of a chemical reaction?
answered
Feb 19
in
Chemical kinetics
1
answer
34
views
How does the concentration of photosensitizer affect the rate of the photochemical reaction in the presence of light?
asked
Feb 18
in
PhotoChemistry
1
answer
30
views
How does the choice of exchange-correlation functional influence the accuracy of density functional theory calculations of surface properties in catalytic systems?
asked
Feb 18
in
Computational Chemistry
1
answer
25
views
How does the addition of an electrolyte affect the stability of a colloidal dispersion and what are the factors that determine whether the dispersion will coagulate or remain stable?
answered
Feb 17
in
Surface Chemistry
1
answer
95
views
What is the effect of increasing the polarity of a solvent on the reaction rate of a chemical reaction?
asked
Feb 13
in
Chemical kinetics
1
answer
64
views
What is the net ATP production via oxidative phosphorylation per glucose molecule in the Citric Acid Cycle in eukaryotic cells? Explain the reasons for the difference in the ATP yield between NADH and FADH2.
asked
Feb 13
in
BioChemistry
1
answer
69
views
How can the synthesis of polypropylene from propylene monomer be optimized to increase the yield and improve the properties of the product, such as melting point and tensile strength?
answered
Feb 11
in
Chemical synthesis
1
answer
69
views
How can the production process of fragrances be improved to increase yield and reduce waste using chemical engineering principles?
asked
Feb 10
in
Chemical engineering
1
answer
54
views
How can the processing conditions (e.g. temperature, pressure, shear rate) be optimized to improve the mechanical properties (e.g. ductility, strength) of a specific polymer during its manufacturing process?
asked
Feb 10
in
Polymer Chemistry
1
answer
32
views
How can the knowledge of the molecular structure of a specific target virus be used to design drugs that selectively and effectively target the virus, while minimizing side effects on human cells?
answered
Feb 7
in
Medicinal Chemistry
1
answer
40
views
How can chemistry teachers or institutions provide adequate and effective hands-on experimentation opportunities for students, despite limited resources and equipment?
asked
Feb 5
in
Chemical education
1
answer
80
views
Explain why some molecules with polar bonds are nonpolar in nature and provide a few examples.
answered
Feb 4
in
Chemical education
1
answer
70
views
Calculate the standard enthalpy change of the precipitation reaction between 50.0 mL of 0.100 M Pb(NO3)2 and excess 0.100 M NaCl solution at 25°C given that the reaction is Pb(NO3)2 (aq) + 2NaCl (aq) → PbCl2(s) + 2NaNO3 (aq) and the enthalpy of formation of NaNO3 (aq) and NaCl (aq) are -467.7 kJ/mol and -411.2 kJ/mol respectively.
answered
Feb 3
in
Chemical thermodynamics
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