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How does change in temperature affect the reaction rate and mechanism of the Cl + HBr -> HCl + Br reaction, based on quantum chemistry calculations?
asked
Feb 22
in
Quantum Chemistry
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votes
1
answer
30
views
How does the presence of a catalyst affect the reaction rate of a chemical reaction between hydrogen peroxide and potassium iodide? And how does the rate of the reaction change when different amounts of catalyst are used?
asked
Feb 22
in
Chemical kinetics
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votes
1
answer
35
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What is the hybridization of carbon atoms in ethene (C2H4)?
asked
Feb 20
in
Chemical bonding
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1
answer
31
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How does the excited state dynamics of a molecule vary based on the type of solvents used in ab initio calculations?
asked
Feb 20
in
Computational Chemistry
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votes
1
answer
34
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How is the degradation of proteins regulated in cells, and what is the significance of protein turnover in cellular processes?
asked
Feb 19
in
BioChemistry
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1
answer
27
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How does the addition of different metal oxides affect the properties of ceramics used for high-temperature applications?
asked
Feb 17
in
Materials Chemistry
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votes
1
answer
34
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How does temperature affect the rate of enzymatic reactions in the body? Provide a detailed explanation and specific examples of enzymatic reactions that are affected by changes in temperature.
asked
Feb 17
in
BioChemistry
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votes
1
answer
36
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What is the role of metalloenzymes in cellular processes? Provide at least three examples of metalloenzymes and explain their functions in detail.
asked
Feb 13
in
Coordination Chemistry
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votes
1
answer
31
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How can we design novel antiviral agents that target viral enzymes with high specificity and potency, but have minimal off-target effects on host cell proteins?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
68
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How can the synthesis of carbon nanotubes be optimized to improve their mechanical strength and electrical conductivity for their use in electronic devices and composite materials?
asked
Feb 11
in
Materials Chemistry
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1
answer
33
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How can the surface properties of a polymer-based biomaterial be modified to enhance cell adhesion and proliferation for tissue engineering applications?
asked
Feb 11
in
Polymer Chemistry
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votes
1
answer
52
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How can the organic synthesis of a specific compound be achieved using retrosynthesis? Provide a step-by-step procedure showing the disconnection approach and the reagents, conditions, and mechanisms required for each reaction step.
asked
Feb 10
in
Organic Chemistry
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votes
1
answer
34
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How can small molecule inhibitors be designed and synthesized to selectively target autoimmune disease-causing immune cells while sparing healthy cells in the body?
asked
Feb 5
in
Medicinal Chemistry
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votes
1
answer
38
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How can chemistry students improve their understanding and retention of complex chemical concepts, such as the relationship between thermodynamics and kinetics in chemical reactions, and apply them to real-world scenarios?
asked
Feb 5
in
Chemical education
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1
answer
44
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Here's a question for the chemistry student to solve based on the subtopic of predicting the direction of a reaction at equilibrium:If the concentration of nitrogen dioxide (NO2) gas in a sealed container at equilibrium at a temperature of 450 K is increased, what will be the effect on the concentration of nitrogen monoxide (NO) in the container?
asked
Feb 4
in
Chemical equilibrium
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votes
1
answer
60
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Determine the Tafel slopes for the oxidation of H2 gas and the reduction of O2 gas using a platinum electrode in a 1 M acidic solution. The measured current densities at the anode and cathode were 0.5 mA/cm² and 0.3 mA/cm², respectively.
asked
Feb 4
in
ElectroChemistry
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votes
1
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89
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Describe the coordination geometry and the type of ligands involved in the active site of the metalloenzyme catalase, which uses a heme group to convert hydrogen peroxide to water and oxygen. How does the nature of the ligands and the coordination geometry contribute to the enzyme's catalytic activity?
asked
Jan 31
in
Coordination Chemistry
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votes
1
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99
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What is the specific coordination geometry and ligand binding affinity of the metal ion in the active site of the enzyme carbonic anhydrase and how does this affect its catalytic activity?
asked
Jan 31
in
Coordination Chemistry
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votes
1
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69
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What is the concentration of copper ions (Cu2+) in a sample of industrial wastewater? Use voltammetry to determine the amount of copper ions present in the sample and calculate the concentration in parts per million (ppm).Note: The student should be familiar with the principles of voltammetry and know how to prepare and analyze samples for this technique.
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
136
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What is the concentration of copper (II) ions in a given sample of wastewater using the polarographic method, given the obtained peak current is 2.5 mA and the standard potential of Cu2+ → Cu transformation is -0.34 V, working at a pH of 4.5 with a scan rate of 50 mV/s?
asked
Jan 30
in
Analytical Chemistry
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