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0
votes
20
views
How does the size and shape of a molecule or nanoscale system affect its quantum transport properties?
answered
23 hours
ago
in
Quantum Chemistry
0
votes
19
views
What is the effect of reactant orientation on the reaction rate of a chemical reaction between hydrochloric acid (HCl) and magnesium (Mg)?
answered
3 days
ago
in
Chemical kinetics
0
votes
22
views
How do the photochemical properties of nanoparticles change in response to different light wavelengths?
answered
3 days
ago
in
PhotoChemistry
0
votes
21
views
What is the mechanism behind electrophilic substitution reactions in aromatic compounds? Provide an example of an electrophilic substitution reaction and explain why it occurs.
answered
4 days
ago
in
Organic Chemistry
0
votes
25
views
What is the coordination geometry of the active site in the enzyme carbonic anhydrase, and how does this influence its catalytic activity?
answered
6 days
ago
in
Coordination Chemistry
0
votes
17
views
What is the bond order of a nitrogen molecule (N2)?
answered
Feb 18
in
Chemical bonding
0
votes
25
views
What is the bond enthalpy of the O-H bond in a water molecule? How does this value relate to the strength of the bond?
answered
Feb 18
in
Chemical bonding
0
votes
35
views
How do specific amino acid sequences in transcription factors contribute to DNA-protein interactions and regulation of gene expression?
answered
Feb 14
in
BioChemistry
0
votes
38
views
How can we design effective virtual experiments to provide a meaningful hands-on learning experience for chemistry students in situations where physical access to laboratories is limited?
answered
Feb 12
in
Chemical education
0
votes
44
views
How can we design an effective drug to specifically target and eliminate Methicillin-resistant Staphylococcus aureus (MRSA) bacteria, while minimizing unnecessary harm to the patient's normal microbiota?
answered
Feb 12
in
Medicinal Chemistry
0
votes
35
views
How can the chemical reaction involved in the synthesis of a particular pharmaceutical drug be optimized to increase yield and minimize waste products?
answered
Feb 6
in
Chemical engineering
0
votes
31
views
How can chemistry students be given more exposure to current research in chemistry to enhance their understanding of the subject and inspire their future scientific pursuits? Evaluate potential solutions such as guest lectures, field trips to research facilities, or incorporating current research into classroom activities.
answered
Feb 4
in
Chemical education
0
votes
34
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Determine the equilibrium concentrations of reactants and products for the reaction 2H2(g) + O2(g) ⇌ 2H2O(g) at 500K when initial concentrations of H2 and O2 are 0.2M and 0.1M respectively, and the equilibrium constant (Kc) is 4.67 x 10^3.
answered
Feb 4
in
Chemical equilibrium
0
votes
50
views
How does changing the concentration of reactants affect the selectivity of a chemical reaction?
answered
Feb 3
in
Chemical kinetics
0
votes
81
views
How does the process of beta-oxidation regulate the concentration of free fatty acids in the blood during periods of high fat intake?
answered
Jan 31
in
BioChemistry
0
votes
47
views
Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) if it releases 5184 kJ/mol of energy.
answered
Jan 23
in
ThermoChemistry
0
votes
73
views
A chemistry student wants to determine the concentration of a solution containing iron (III) ions. Using colorimetry, they measure the absorbance of the solution at a specific wavelength and plot a calibration curve with solutions of known iron (III) ion concentration. The student then measures the absorbance of their unknown solution at the same wavelength and uses the calibration curve to determine the concentration of iron (III) ions in the sample. What is the concentration of iron (III) ions in the unknown solution, in units of moles per liter?
answered
Jan 22
in
Analytical Chemistry
0
votes
62
views
A chemistry student needs to analyze a water sample to determine the concentration of a certain contaminant. The student knows the initial concentration of the contaminant in the source water and the volume of the source water used to produce the final sample. Can the student use mass balance calculations to determine the concentration of the contaminant in the final water sample? If so, what is the concentration of the contaminant in the final sample?
answered
Jan 22
in
Analytical Chemistry
0
votes
95
views
A bottle contains a mixture of nitrogen and oxygen gases. At a specific temperature and pressure, the nitrogen molecules move on an average velocity of 500 m/s and oxygen molecules move at 400 m/s. What is the partial pressure of nitrogen and oxygen in the mixture if the total pressure of the gas is 1 atm?
answered
Jan 22
in
Physical Chemistry
0
votes
37
views
When was the first study of bystander intervention published?
answered
Jan 20
in
Psychology
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