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What is the effect of ligand structure on the photochemical properties of lanthanide complexes? Compare and contrast the photochemical behaviors of two different lanthanide complexes with different ligands.
asked
3 days
ago
in
PhotoChemistry
0
votes
1
answer
18
views
What is the percent yield of a chemical reaction when 5 grams of reactant A reacted with excess reactant B to produce 3.5 grams of product C, given that the theoretical yield of C is 4 grams?
asked
3 days
ago
in
Chemical reactions
0
votes
1
answer
19
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What is the Lewis structure for the methane (CH4) molecule?
asked
4 days
ago
in
Chemical bonding
0
votes
1
answer
25
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What is the hybridization of the central atom in the molecule of methane (CH4)?
asked
5 days
ago
in
Chemical bonding
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votes
1
answer
21
views
How has the historical and evolutionary development of chemistry shaped the current understanding and application of chemical principles and technologies?
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5 days
ago
in
Chemical education
0
votes
1
answer
27
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How does the choice of polymer affect the mechanical properties and print quality of a 3D printed object?
asked
6 days
ago
in
Polymer Chemistry
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votes
1
answer
26
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How do quantum chemical calculations assist in predicting and interpreting electronic transitions in excited states of molecules?
asked
Feb 14
in
Computational Chemistry
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votes
1
answer
38
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What are the environmental impacts of producing biofuels from corn and sugarcane, and how do these impacts compare to those of fossil fuels?
asked
Feb 14
in
Environmental Chemistry
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votes
1
answer
31
views
What are the mechanisms of degradation of polyethylene under UV light exposure and how can its stability be improved using different additives?
asked
Feb 14
in
Polymer Chemistry
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votes
1
answer
56
views
How does changing the pH affect the equilibrium position of a redox reaction between iron (II) and dichromate ions in acidic and basic solutions? Provide a balanced chemical equation and explain your reasoning using Le Chatelier's principle.
asked
Feb 13
in
Chemical equilibrium
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votes
1
answer
31
views
How can the physical and chemical properties of polyurethane be optimized by modifying the diisocyanate and polyol used in the synthesis process?
asked
Feb 10
in
Chemical synthesis
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votes
1
answer
33
views
How can chemistry students without access to a laboratory and equipment still perform experiments and gain relevant hands-on experience in their studies?
asked
Feb 5
in
Chemical education
0
votes
1
answer
68
views
What is the concentration of caffeine in a sample of coffee using liquid chromatography?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
47
views
How can you use spectrophotometry to quantify the amount of copper ions in a water sample?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
52
views
Calculate the bond length between a carbon and a hydrogen atom in methane (CH4), given that the bond energy is 104.2 kcal/mol and the force constant is 500 N/m.
asked
Jan 23
in
Chemical bonding
0
votes
1
answer
38
views
What is the implications of the cognitive theory on information processing?
asked
Jan 20
in
Psychology
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votes
1
answer
37
views
According to Julian Rotter's social learning theory, how do individuals perceive control over their own lives?
asked
Jan 17
in
Psychology
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votes
1
answer
29
views
When assessing community needs, what is the term for conducting an in-depth investigation?
asked
Jan 17
in
Psychology
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votes
1
answer
30
views
Who is responsible for determining the direction of a correlation?
asked
Jan 17
in
Psychology
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votes
1
answer
45
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Who proposed the pattern theory?
asked
Jan 16
in
Psychology
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