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20
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How does pH affect the stability of colloidal particles and their tendency to coagulate?
answered
3 days
ago
in
Surface Chemistry
0
votes
19
views
What is the most efficient polymer-based photovoltaic material and how does its molecular structure contribute to its performance in converting solar energy to electrical energy?
answered
4 days
ago
in
Polymer Chemistry
0
votes
24
views
How does the mechanism of adsorption differ between Langmuir and Freundlich isotherms in the context of heterogeneous catalysis?
answered
5 days
ago
in
Surface Chemistry
0
votes
22
views
How does the intensity of light affect the rate of reaction between potassium iodide (KI) and hydrogen peroxide (H2O2)?
answered
5 days
ago
in
Chemical kinetics
0
votes
24
views
What is the effect of temperature on the adsorption of a gas on a solid surface? Provide a detailed explanation of the process and factors that contribute to the temperature dependence of gas adsorption on a solid surface.
answered
6 days
ago
in
Physical Chemistry
0
votes
22
views
What is the polarity of the bond between hydrogen and oxygen in water and what factors contribute to its polarity?
answered
Feb 18
in
Chemical bonding
0
votes
41
views
How does increasing pressure affect the rate of the reaction between hydrogen gas and iodine gas to form hydrogen iodide gas, and can this relationship be explained by applying the collision theory?
answered
Feb 13
in
Chemical kinetics
0
votes
31
views
How do current environmental regulations for industries affect air and water pollution levels, and what improvements can be made to enhance their effectiveness in protecting the environment?
answered
Feb 12
in
Environmental Chemistry
0
votes
33
views
How can the growth of carbon nanotubes be optimized to result in the highest quality and quantity using the newly developed synthesis methods in materials chemistry?
answered
Feb 7
in
Materials Chemistry
0
votes
29
views
How can chemistry teachers provide better support for students with learning disabilities in the classroom to ensure they have equal access to education and achieve academic success?
answered
Feb 6
in
Chemical education
0
votes
29
views
How can chemistry teachers provide better support and accommodations for students with learning disabilities to promote their success and engagement in the subject?
answered
Feb 5
in
Chemical education
0
votes
28
views
How can chemistry teachers effectively incorporate safety protocols into their lesson plans to ensure a safe and educational experience for students in the lab?
answered
Feb 5
in
Chemical education
0
votes
12
views
Calculate the rate constant at 300 K for a gas phase reaction with a rate of 0.025 M/s and an initial concentration of 0.10 M. The reaction is second order in the concentration of reactants.
answered
Feb 3
in
Physical Chemistry
0
votes
77
views
What is the coordination number and geometry of the metal ion at the active site of the metalloenzyme carbonic anhydrase? How does the coordination environment of the metal ion contribute to the enzyme's catalytic activity?
answered
Jan 31
in
Coordination Chemistry
0
votes
91
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What is the specific coordination environment and reaction mechanism of the metal ion in the active site of the metalloenzyme, carbonic anhydrase? Provide a detailed analysis of the coordination bonds formed between the metal ion and amino acid residues within the enzyme.
answered
Jan 31
in
Coordination Chemistry
0
votes
77
views
How can we address the issue of insufficient funding for chemistry education and ensure that students have access to high-quality resources and proper training?
answered
Jan 30
in
Chemical education
0
votes
79
views
What are the specific steps that can be taken by universities to better prepare chemistry students for chemistry-related careers?
answered
Jan 30
in
Chemical education
0
votes
66
views
Calculate the heat of mixing when 25.0 mL of 0.50 M HCl solution is added to 25.0 mL of 0.50 M NaOH solution at 25 °C. The heat capacity of the resulting solution is 4.18 J/g°C and the density is 1.00 g/mL. Assume the heat of reaction is constant at 57.1 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
53
views
A beaker containing 1L of water is divided into two equal compartments by a semi-permeable membrane. One side of the membrane has 1M NaCl solution and the other side is pure water. Determine the time taken for the concentration of NaCl on both sides of the membrane to become equal through diffusion. Given: Molecular weight of NaCl is 58.44 g/mol, and diffusion coefficient of NaCl in water is 1.6 x 10^-9 m^2/s.
answered
Jan 22
in
Physical Chemistry
0
votes
40
views
When was the first experimental demonstration of classical conditioning?
answered
Jan 20
in
Psychology
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