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Answers by CedricNicker
0
votes
14
views
What is the mechanism behind the fading of a certain dye when exposed to sunlight? Can you propose a way to mitigate this effect and enhance the dye's lightfastness properties?
answered
6 days
ago
in
PhotoChemistry
0
votes
27
views
What is the effect of pH on the reaction rate of the hydrolysis of sucrose using invertase enzyme at 37°C?
answered
6 days
ago
in
Chemical kinetics
0
votes
19
views
What is the effect of changing the concentration of a particular biomaterial on its mechanical and structural properties for tissue engineering applications?
answered
6 days
ago
in
Materials Chemistry
0
votes
32
views
How does temperature affect the rate of an enzyme-catalyzed reaction?
answered
Feb 17
in
BioChemistry
0
votes
35
views
How do protein kinases play a crucial role in cellular signal transduction pathways? Provide a detailed explanation with relevant chemical reactions and examples.
answered
Feb 14
in
BioChemistry
0
votes
41
views
How does the electronic structure of perovskite materials impact their optical properties, and how can quantum chemistry calculations be used to predict these properties?
answered
Feb 14
in
Quantum Chemistry
0
votes
30
views
How can the use of nanoiron particles aid in the remediation of chlorinated solvent-contaminated sites?
answered
Feb 13
in
Environmental Chemistry
0
votes
8
views
How does insulin signaling affect glucose uptake and metabolism in liver cells?
answered
Feb 13
in
BioChemistry
0
votes
10
views
How can the knowledge of enzymatic mechanisms and metabolic pathways be applied to design drugs for treating metabolic disorders such as diabetes or obesity? Specifically, what properties or strategies should be considered in order to develop drugs that can selectively target and modulate key enzymes or metabolic pathways involved in disease pathophysiology?
answered
Feb 7
in
Medicinal Chemistry
0
votes
31
views
How can the design of a system for the production of cosmetics be optimized to improve the efficiency of the chemical reactions, reduce waste generation, and maximize the product yield?
answered
Feb 7
in
Chemical engineering
0
votes
98
views
What new techniques can be developed for the synthesis of zeolites that would result in enhanced efficiency and specific physicochemical properties suitable for industrial applications?
answered
Jan 30
in
Materials Chemistry
+1
vote
73
views
What is the concentration of lead (Pb) in a water sample collected from a nearby river, using atomic absorption spectroscopy?
answered
Jan 30
in
Analytical Chemistry
0
votes
61
views
How accurately can we determine the purity of a given sample of a substance using melting point determination and what are the possible sources of error in this process?
answered
Jan 29
in
Analytical Chemistry
0
votes
11
views
Calculate the exchange current density for a zinc electrode immersed in a 1.0 M solution of zinc sulfate at 25°C when the overpotential is 0.05 V. The standard reduction potential for the Zn2+/Zn couple is -0.76 V. The transfer coefficient is 0.5. Assume that the concentration of the electrolyte does not change significantly during the reaction.
answered
Jan 23
in
ElectroChemistry
0
votes
68
views
Calculate the enthalpy change of combustion for ethane (C2H6) when 5.00 g of ethane is completely burned in excess oxygen gas, given that the standard enthalpy of combustion of ethane is -1560 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
63
views
Calculate the activation energy for a chemical reaction that has a rate constant of 0.007 mol/L/s at 25°C and 0.059 mol/L/s at 35°C.
answered
Jan 23
in
Chemical reactions
0
votes
48
views
A chemistry student wants to determine the specific heat capacity of a metal sample. The student adds 50 g of the metal sample to 200 g of water at 25°C in a calorimeter. The temperature of the water rises from 25°C to 38°C. Assume the specific heat capacity of water is 4.184 J/g°C. What is the specific heat capacity of the metal sample?
answered
Jan 22
in
ThermoChemistry
0
votes
68
views
What is the solubility of calcium sulfate (CaSO4) in water at 25°C given that the Ksp of CaSO4 is 4.93 × 10^-5?
answered
Jan 21
in
Inorganic Chemistry
0
votes
25
views
What is the role of social psychology in communities?
answered
Jan 20
in
Psychology
0
votes
39
views
Why is the Robbers Cave experiment famous?
answered
Jan 20
in
Psychology
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