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User NataliaCaple
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0
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17
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How does the size and shape of the catalyst affect the rate of a catalytic reaction?
answered
1 day
ago
in
Physical Chemistry
0
votes
25
views
What is the relationship between the electronic excited states and the optical properties of a certain molecule, and how can this be calculated using quantum chemistry methods?
answered
1 day
ago
in
Quantum Chemistry
0
votes
20
views
What is the effect of concentration, temperature, and catalysts on the reaction rate of a specific chemical reaction, and how can this information be used to ensure the safety of the reaction process?
answered
1 day
ago
in
Chemical kinetics
0
votes
24
views
What is the effect of increasing pressure on the rate of the reaction between hydrochloric acid and sodium thiosulfate?
answered
3 days
ago
in
Chemical kinetics
0
votes
20
views
What is the mechanism of the reaction between benzene and bromine in the presence of an iron catalyst? Describe the intermediates formed during the process and explain the role of the catalyst in the reaction.
answered
3 days
ago
in
Organic Chemistry
0
votes
22
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What is the rate constant for a first-order reaction that has a half-life of 10 minutes and an initial concentration of 0.1 M?
answered
3 days
ago
in
Chemical kinetics
0
votes
23
views
What is the optimum reaction conditions (temperature, pressure, catalyst, etc.) for the synthesis of polystyrene from styrene monomer to yield a maximum percentage yield and molecular weight?
answered
3 days
ago
in
Chemical synthesis
0
votes
19
views
What are the different possible resonance structures of the nitrate ion (NO3-) and how do they contribute to the overall structure and properties of the molecule?
answered
3 days
ago
in
Chemical bonding
0
votes
27
views
How does the composition and structure of glasses affect their refractive index and light transmission properties, and how can these properties be optimized for specific optical applications such as lenses, prisms, and optical fibers?
answered
6 days
ago
in
Materials Chemistry
0
votes
23
views
What is the bond dissociation energy (in kJ/mol) of the O-H bond in a water molecule if the energy required to break this bond is 464 kJ/mol?
answered
Feb 18
in
ThermoChemistry
0
votes
31
views
What type of bond is formed between a nitrogen atom and an oxygen atom in a molecule of nitrogen monoxide (NO)?
answered
Feb 13
in
Chemical bonding
0
votes
32
views
What structural and electronic parameters are necessary for a metal ion to function as a cofactor in metalloenzymes and metalloproteins, and how do these factors affect the enzyme's catalytic activity?
answered
Feb 13
in
Coordination Chemistry
0
votes
8
views
How does the signaling molecule, epinephrine, trigger the activation of adenylyl cyclase and subsequent cAMP production in the signal transduction pathway?
answered
Feb 13
in
BioChemistry
0
votes
39
views
How can we design drugs that have high specificity and effectiveness for treating genetic disorders caused by mutations in specific genes, such as cystic fibrosis or Huntington's disease?
answered
Feb 12
in
Medicinal Chemistry
0
votes
47
views
How can we design a drug that targets the specific proteins or enzymes involved in the development of Alzheimer's disease, while minimizing the potential side effects on healthy brain cells?
answered
Feb 12
in
Medicinal Chemistry
0
votes
51
views
How can the properties of liquid crystals be manipulated and optimized to improve the performance of display technology?
answered
Feb 10
in
Materials Chemistry
0
votes
27
views
How can the chemical engineering principles be applied to design a sustainable and cost-effective system for the production of cosmetics, taking into account the environmental impact and the safety of both workers and consumers?
answered
Feb 6
in
Chemical engineering
0
votes
10
views
Considering carbohydrate metabolism and regulation in the human body, how does the regulation of glycolysis and gluconeogenesis work to maintain blood glucose levels during periods of fasting or intense exercise? Include both the enzymes involved and the hormonal regulation mechanisms in your answer.
answered
Feb 3
in
BioChemistry
0
votes
72
views
What is the excitation energy and wavelength of the highest energy absorption transition for a molecule of benzene (C6H6) using time-dependent density functional theory (TDDFT) calculations?
answered
Jan 31
in
Computational Chemistry
0
votes
87
views
A student measures the current in a galvanic cell with a standard potential of 1.10 V, using a Zinc electrode and a Copper electrode. The student recorded the current as 0.50 A. What is the rate of the electrochemical reaction occurring in the cell?
answered
Jan 22
in
ElectroChemistry
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