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1
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How does the molecular structure of a photovoltaic material affect its photochemical properties and ultimately, its efficiency in converting sunlight into electrical energy?
asked
4 days
ago
in
PhotoChemistry
0
votes
1
answer
24
views
How does the initial orientation of reactant molecules affect the rate of a chemical reaction? Design an experiment to investigate this effect and analyze the results.
asked
5 days
ago
in
Chemical kinetics
0
votes
1
answer
24
views
What is the effect of solvent polarity on the rate of the photochemical reaction between benzophenone and methanol in different solvents with varying polarities?
asked
6 days
ago
in
PhotoChemistry
0
votes
1
answer
27
views
How does the concentration of Nitrogen and Phosphorus pollutants in water bodies affect the aquatic ecosystem, and what are some effective methods to prevent or mitigate their harmful impacts on water quality?
asked
Feb 19
in
Environmental Chemistry
0
votes
1
answer
33
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How does the absorption spectrum of chlorophyll relate to the wavelengths of light used during photosynthesis, and how does this impact the efficiency of carbon fixation in plants?
asked
Feb 17
in
BioChemistry
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votes
1
answer
25
views
How does the surface modification of biomaterials affect their biocompatibility and performance in medical applications?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
23
views
How can you effectively prepare for chemistry exams to overcome the inadequate preparation? Provide a step-by-step study plan that includes various strategies such as active reading, practice problems, and seeking help from a tutor or teacher.
asked
Feb 14
in
Chemical education
0
votes
1
answer
48
views
How can the properties of liquid crystals be optimized to improve the quality and efficiency of display technology?
asked
Feb 10
in
Materials Chemistry
0
votes
1
answer
56
views
Calculate the enthalpy change for the hydrolysis of sucrose given that 10.0 g of sucrose was completely hydrolyzed in excess water. The reaction takes place at 25°C and 1 atm pressure. The following reaction is involved: C12H22O11(s) + H2O(l) → 12C(s) + 11H2O(l) The enthalpy of formation of C12H22O11(s) is -2226.8 kJ/mol and the enthalpy of formation of H2O(l) is -285.8 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
64
views
Calculate the bond dissociation energy (in kJ/mol) for the breaking of the carbon-hydrogen (C-H) bond in methane (CH4), given the following information: CH4 (g) → CH3 (g) + H (g) ∆H = 432 kJ/mol Note: The bond dissociation energy is the amount of energy required to break a bond between two atoms in a molecule, resulting in two separate atoms.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
13
views
A student carried out a chemical reaction in the laboratory and obtained 12 grams of the product. However, the theoretical yield of the product was 15 grams. Calculate the percent yield of the product.
asked
Jan 22
in
Chemical reactions
0
votes
1
answer
82
views
A chemistry student wants to create a chemical reaction that produces exactly 25 grams of water. How many grams of hydrogen and oxygen would need to react to create this amount of water?
asked
Jan 22
in
Chemical reactions
0
votes
1
answer
107
views
What is the balanced equation for the oxidation of ethanol to ethanoic acid? Include the oxidation state of each carbon atom before and after the reaction.
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
38
views
When can self-compassion be used as a preventative measure?
asked
Jan 20
in
Psychology
0
votes
1
answer
45
views
Who is more likely to engage in intergroup contact?
asked
Jan 20
in
Psychology
0
votes
1
answer
52
views
How does the problem of induction relate to theory evaluation?
asked
Jan 17
in
Psychology
0
votes
1
answer
42
views
When evaluating the cognitive theories, why is it important to distinguish between correlational studies and experimental designs?
asked
Jan 16
in
Psychology
+1
vote
1
answer
12
views
When evaluating a theory in existential psychology, what is the importance of considering the implications for clinical practice?
asked
Jan 16
in
Psychology
0
votes
1
answer
48
views
Why is accuracy important in theory evaluation?
asked
Jan 16
in
Psychology
0
votes
1
answer
30
views
What is 'contextualism' in discursive psychology?
asked
Jan 15
in
Psychology
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