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0
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22
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What is the Faraday constant and how can it be calculated from the electrolysis of copper sulfate using a current of 2.5 amps for 2 hours?
answered
5 days
ago
in
ElectroChemistry
0
votes
28
views
What is the effect of the degree of crosslinking on the water absorption capacity of polymer-based superabsorbent materials?
answered
5 days
ago
in
Polymer Chemistry
0
votes
24
views
How does the coordinated metal ion affect the electronic properties and optical properties of metalloporphyrins and metallophthalocyanines, and what are the implications for their potential applications in catalysis, sensing or molecular electronics?
answered
6 days
ago
in
Coordination Chemistry
0
votes
33
views
How do the chemical properties of polymer-based packaging materials affect their biodegradability and environmental impact?
answered
Feb 18
in
Polymer Chemistry
0
votes
29
views
What is the bond enthalpy of a carbon-carbon double bond in an ethene molecule (C2H4)?
answered
Feb 18
in
Chemical bonding
0
votes
25
views
What chemical modifications occur during RNA splicing, and what impact do they have on the function and stability of the resulting mRNA molecule?
answered
Feb 14
in
BioChemistry
0
votes
33
views
What are the specific environmental impacts of using polyethylene terephthalate (PET) in food packaging and what are some possible alternatives that have less impact on the environment?
answered
Feb 14
in
Polymer Chemistry
0
votes
25
views
How does the enzyme phosphofructokinase regulate the rates of glycolysis and gluconeogenesis in the liver cells?
answered
Feb 14
in
BioChemistry
0
votes
34
views
What is the difference between ionic and covalent bonds in terms of electron sharing and electrostatic attraction? How do these differences affect the properties of the resulting compounds? Provide specific examples to illustrate your answer.
answered
Feb 13
in
Chemical education
0
votes
36
views
What is the structural difference between furan and pyrrole, and what effect does this structural difference have on their chemical reactivity and physical properties? Provide specific examples of reactions and properties to support your answer.
answered
Feb 13
in
Organic Chemistry
0
votes
9
views
How can we design a new drug that specifically targets cancer cells while leaving healthy cells unharmed?
answered
Feb 12
in
Medicinal Chemistry
0
votes
38
views
How can the chemical and engineering principles be integrated to design a system for the recovery of valuable metals such as gold, silver, and copper from electronic waste in the most efficient and cost-effective manner?
answered
Feb 6
in
Chemical engineering
0
votes
32
views
How can the adhesion of a polymer coating on a metal surface be improved to prevent corrosion?
answered
Feb 6
in
Polymer Chemistry
0
votes
30
views
How can Computational chemistry and molecular modeling be used to predict the properties of a new drug candidate?
answered
Feb 5
in
Physical Chemistry
0
votes
47
views
For the reaction below, calculate the equilibrium constant (K) when the electrode potentials are E°(Cu2+/Cu) = +0.34 V and E°(Ag+/Ag) = +0.80 V:Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
answered
Feb 4
in
ElectroChemistry
0
votes
41
views
Design a chemical reactor for the production of ethylene oxide through the direct oxidation of ethylene. The reactor should have a production rate of 100 tons per day and maintain a constant temperature of 250°C. Assume a feed composition of 90% ethylene and 10% oxygen. The reactor should also have a conversion efficiency of at least 95%. Compute the necessary reactor volume and the optimal flow rate of ethylene and oxygen to achieve the desired production rate and conversion efficiency.
answered
Feb 3
in
Chemical engineering
0
votes
10
views
Consider a system that consists of water and sodium chloride (NaCl) at room temperature and atmospheric pressure. The student is asked to determine the minimum amount of NaCl that needs to dissolve in 100 grams of water in order to form a saturated solution. The student should also calculate the molar solubility of NaCl in the solution.
answered
Feb 3
in
Physical Chemistry
0
votes
98
views
What is the concentration of a unknown copper(II) ion solution using polarography if a current of 2.5 mA is recorded at an applied potential of -0.45 V? The standard reduction potential of Cu2+ to Cu is -0.34 V.
answered
Jan 30
in
Analytical Chemistry
0
votes
63
views
Calculate the heat of crystallization of 10 grams of sodium acetate trihydrate (NaC2H3O2•3H2O) when it is cooled from 50°C to 10°C and crystallizes. The specific heat capacity of water is 4.18 J/g°C. The molar mass of sodium acetate is 82.03 g/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
52
views
Balance the following chemical equation: Fe2O3 + CO -> Fe + CO2
answered
Jan 22
in
Chemical reactions
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