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User Kurt09Q6154
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Recent activity by Kurt09Q6154
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What is the effect of doubling the concentration of reactants on the reaction rate for the chemical reaction between sodium thiosulfate and hydrochloric acid?
answered
3 days
ago
in
Chemical kinetics
1
answer
21
views
What is the rate constant of a first-order reaction that has a half-life of 10 seconds and an initial concentration of 0.1 M?
asked
3 days
ago
in
Physical Chemistry
1
answer
21
views
How does the liver synthesize and transport lipids, and what role do lipoproteins play in this process?
asked
5 days
ago
in
BioChemistry
1
answer
26
views
What is the equilibrium constant, Kw, for the ionization of water at 25°C if the concentration of H+ ions is 1 x 10^-7 M?
answered
5 days
ago
in
Chemical equilibrium
1
answer
23
views
What is the effect of temperature on the conductivity of ionic liquids?
asked
6 days
ago
in
Physical Chemistry
1
answer
25
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What is the coordination geometry of a [Co(NH3)6]3+ complex, and how can this be determined using spectroscopic techniques such as UV-vis and IR spectroscopy?
asked
6 days
ago
in
Coordination Chemistry
1
answer
32
views
How does the choice of diisocyanate and polyol affect the properties of the synthesized polyurethane? Conduct a comparative study on the properties of the polyurethane synthesized using different combinations of diisocyanate and polyol.
answered
Feb 18
in
Chemical synthesis
1
answer
33
views
What is the effect of catalyst particle size on the rate of a catalytic reaction? Provide a detailed explanation and relevant examples.
asked
Feb 18
in
Physical Chemistry
1
answer
23
views
How does the addition of a catalyst affect the equilibrium position of a chemical reaction?Include an example with a balanced chemical equation and calculations to support your answer.
answered
Feb 17
in
Chemical equilibrium
1
answer
26
views
How does the surface morphology of a substrate affect the enhancement factor in surface-enhanced Raman spectroscopy?
asked
Feb 17
in
Surface Chemistry
1
answer
31
views
How do the photochemical properties of quantum dots vary with changes in their size, shape, and composition?
asked
Feb 14
in
PhotoChemistry
1
answer
25
views
How can we use quantum chemistry calculations to predict the selectivity and activity of a catalyst for a specific chemical reaction?
asked
Feb 14
in
Quantum Chemistry
1
answer
31
views
What are the differences between purines and pyrimidines in terms of molecular structure and how those differences impact the genetic code stored in DNA?
asked
Feb 14
in
BioChemistry
1
answer
31
views
How do protein-protein interactions and complexes contribute to the stability and functionality of biological systems?
answered
Feb 14
in
BioChemistry
1
answer
9
views
How can we optimize the design of a cosmetic production system to minimize waste and increase efficiency while ensuring the quality and safety of the final product?
answered
Feb 14
in
Chemical engineering
1
answer
9
views
How can we design and synthesize new molecules with improved efficacy and safety for the treatment of hypertension, a major risk factor for cardiovascular diseases?
answered
Feb 12
in
Medicinal Chemistry
1
answer
45
views
How can we design an interactive approach to enhance basic chemistry knowledge among individuals with limited exposure to chemistry in everyday life?
answered
Feb 12
in
Chemical education
1
answer
12
views
How can the properties of a polymer be optimized during the manufacturing process to achieve desired mechanical, thermal, and chemical properties?
answered
Feb 10
in
Polymer Chemistry
1
answer
40
views
Calculate the standard enthalpy change for the neutralization of hydrochloric acid (HCl) with sodium hydroxide (NaOH) in aqueous solution when 50.0 mL of 0.100 M HCl was used and 75.0 mL of 0.075 M NaOH was added. Assume that the specific heat capacity of the solution is 4.18 J/g·K and the density of the solution is 1.00 g/mL.
answered
Feb 3
in
Chemical thermodynamics
1
answer
45
views
Calculate the standard enthalpy change for the formation of carbon dioxide (CO2) from its elements, given the following standard enthalpies of formation:ΔHf°(CO2) = -393.5 kJ/molΔHf°(C) = 0 kJ/molΔHf°(O2) = 0 kJ/mol
asked
Feb 3
in
Chemical thermodynamics
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