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User AmelieW70701
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What is the relationship between the chemical composition and the optical properties of glasses used in optical fiber communication systems?
answered
1 day
ago
in
Materials Chemistry
1
answer
19
views
What is the effect of increasing concentration of the product on the rate of the reaction between iodine and propanone?
asked
3 days
ago
in
Chemical kinetics
1
answer
18
views
What is the effect of reactant orientation on the rate of reaction between hydrogen peroxide and iodide ions?
answered
3 days
ago
in
Chemical kinetics
1
answer
18
views
How does the polarity of a solvent affect the solubility of a substance? Provide a detailed explanation with examples.
answered
3 days
ago
in
Chemical bonding
1
answer
17
views
What is the optimal doping concentration of boron in silicon for the fabrication of high-performance solar cells? How does the concentration of boron in silicon affect the electrical properties of the resulting semiconductor material?
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3 days
ago
in
Materials Chemistry
1
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15
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How does the monomer selection and polymerization process affect the optical properties of the resulting polymer-based optical material?
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3 days
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Polymer Chemistry
1
answer
17
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What is the most efficient method for the production of 1,4-dioxane using a continuous flow reactor design, and how can the process be optimized to minimize waste and reduce production costs?
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3 days
ago
in
Chemical engineering
1
answer
21
views
What is the most efficient and cost-effective method for synthesizing cadmium selenide (CdSe) quantum dots with controlled size and shape using green chemistry principles?
asked
4 days
ago
in
Materials Chemistry
1
answer
19
views
What is the mechanism of electrophilic addition reaction of hydrogen halides (HBr, HCl, HI) with alkenes? Provide a step-by-step explanation and mechanism to support your answer.
answered
5 days
ago
in
Organic Chemistry
1
answer
22
views
What is the effect of varying electrolyte concentration on the conductivity of inorganic compounds?
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5 days
ago
in
Inorganic Chemistry
1
answer
28
views
What is the effect of a change in reactant concentration on the rate of a reaction, and how does the reaction mechanism play a role in determining this effect? Provide experimental evidence to support your answer.
answered
5 days
ago
in
Chemical kinetics
1
answer
28
views
How do quantum chemical calculations help in predicting the detailed mechanism of a chemical reaction and what are the key factors affecting the accuracy of these calculations?
asked
Feb 14
in
Computational Chemistry
1
answer
9
views
How can the synthesis of new materials be optimized to enhance their ability to effectively remove contaminants from water sources?
asked
Feb 11
in
Materials Chemistry
1
answer
8
views
How can the production efficiency of surfactants be improved by designing an optimized system that enhances the mixing, heat transfer, and chemical reactions within the reactor?
answered
Feb 10
in
Chemical engineering
1
answer
45
views
How can the process parameters, such as temperature, feed ratio, and catalyst concentration, be optimized to achieve maximum polymer yield and quality in the production of polyethylene using the high-pressure polymerization method?
asked
Feb 10
in
Chemical engineering
1
answer
31
views
How can the permeability and selectivity of polymer-based membranes for water treatment be optimized for the removal of specific contaminants, such as heavy metals or organic compounds?
asked
Feb 10
in
Polymer Chemistry
1
answer
34
views
How can the performance of Metal-Organic Frameworks (MOFs) be improved for selective gas adsorption applications?
asked
Feb 10
in
Coordination Chemistry
1
answer
47
views
How can magnetic resonance spectroscopy be used to determine the purity and concentration of a sample of aspirin? Provide a step-by-step explanation of the process and discuss the factors that can affect the accuracy of the results.
answered
Feb 5
in
Physical Chemistry
1
answer
38
views
Calculate the standard enthalpy change for the complete combustion of methane (CH4) at constant pressure and 298 K, given that the standard enthalpies of formation for CH4(g) and H2O(l) are -74.8 kJ/mol and -285.8 kJ/mol, respectively.
asked
Feb 3
in
Chemical thermodynamics
1
answer
102
views
What is the effect of changes in reactant concentration on the rate of a chemical reaction and its sustainability?
asked
Jan 31
in
Chemical kinetics
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