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1
answer
29
views
What is the Lewis structure of the water molecule, H2O?
answered
Feb 20
in
Chemical bonding
1
answer
38
views
What is the hybridization of the carbon atom in methane (CH4) molecule?
asked
Feb 20
in
Chemical bonding
1
answer
38
views
What is the mechanism of the Hofmann elimination reaction and how does it differ from the E2 reaction? Provide an example of each reaction and explain the factors that affect their selectivity.
asked
Feb 20
in
Organic Chemistry
1
answer
37
views
How does the concentration of a substrate affect the rate of enzyme catalyzed reaction? Design an experiment to investigate the effect of substrate concentration on the rate of enzyme activity and inhibition.
answered
Feb 18
in
BioChemistry
1
answer
41
views
How does the chemical structure of a drug affect its toxicity, and can existing drugs be modified to reduce their toxicity while maintaining their therapeutic efficacy?
answered
Feb 18
in
Medicinal Chemistry
1
answer
28
views
Which analytical method is the best for detecting and quantifying multiple pesticide residues in food samples, and how can the data obtained be used to assess the potential health risks associated with consuming these foods?
asked
Feb 17
in
Environmental Chemistry
1
answer
37
views
How does the addition of different metals and their respective concentrations affect the mechanical and thermal properties of a specific metal alloy used in aerospace applications?
answered
Feb 17
in
Materials Chemistry
1
answer
109
views
What are the differences between gel permeation chromatography and size exclusion chromatography, and how can these techniques be used to characterize polymers with different molecular weights and distributions?
answered
Feb 13
in
Polymer Chemistry
1
answer
127
views
How does the excess input of nitrogen and phosphorus in aquatic ecosystems lead to eutrophication, and what are the potential impacts of eutrophication on water quality and aquatic life?
asked
Feb 13
in
Environmental Chemistry
1
answer
30
views
How do different cooking techniques affect the levels of pesticide residues in food and what is the impact on human health?
answered
Feb 12
in
Environmental Chemistry
1
answer
40
views
How can the principles of medicinal chemistry be applied to design drugs that can effectively target and treat genetic disorders such as cystic fibrosis or sickle cell anemia?
asked
Feb 10
in
Medicinal Chemistry
1
answer
35
views
How can the level of volatile organic compounds (VOCs) in outdoor air be monitored and reduced to improve air quality in a given city or urban area? Determine the most effective strategies and technologies for reducing VOCs emissions and evaluate their potential impact on the environment and public health.
asked
Feb 7
in
Environmental Chemistry
1
answer
39
views
How can the adhesive properties of a polymer-based adhesive be optimized for a specific application, considering factors such as bonding strength, environmental conditions, and chemical compatibility with the surfaces being bonded?
answered
Feb 6
in
Polymer Chemistry
1
answer
38
views
How can chemistry students gain practical experience in the field and obtain competitive internships or job opportunities despite the limited availability?
answered
Feb 5
in
Chemical education
1
answer
55
views
Calculate the overpotential for the reduction reaction of Ag+ to Ag on a silver electrode at 25°C with a current density of 0.5 A/cm2. The standard reduction potential of Ag+ to Ag is 0.799 V vs. the standard hydrogen electrode. The activation energy for this reaction is 65.0 kJ/mol, the transfer coefficient is 0.4 and the reaction order is 1.5.
answered
Feb 3
in
ElectroChemistry
1
answer
95
views
What is the specific concentration of the pesticide residue chlorpyrifos in a particular brand of apples and how does it compare to the Maximum Residue Limit (MRL) established by the regulatory authority? Additionally, what is the potential human health impact of consuming the apples with the measured pesticide residue concentration?
asked
Jan 31
in
Environmental Chemistry
1
answer
103
views
How can we quantify the amount of iron present in a given water sample using colorimetry?
asked
Jan 30
in
Analytical Chemistry
1
answer
106
views
A chemistry student has 10 grams of magnesium and 15 grams of oxygen gas to produce magnesium oxide. What is the limiting reactant and how much magnesium oxide can be produced?
asked
Jan 22
in
Chemical reactions
1
answer
118
views
Identify the type of isomerism exhibited by 2-pentene and 2-methyl-1-butene, and explain the structural differences between the two isomers.
answered
Jan 21
in
Organic Chemistry
1
answer
38
views
Who proposed the concept of cognitive dissonance?
answered
Jan 20
in
Psychology
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