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What is the relationship between light intensity and the rate of photochemical reactions in the process of photosynthesis of a specific plant species, and how does this impact the efficiency of photosynthesis?
asked
2 days
ago
in
PhotoChemistry
0
votes
1
answer
26
views
How does the presence of coordination compounds affect the photostability of certain organic compounds, and what factors contribute to this effect? Provide examples of specific coordination compounds and organic molecules to support your answer.
asked
5 days
ago
in
PhotoChemistry
0
votes
1
answer
25
views
What is the enthalpy change for the ionization of hydrogen atoms in the gas phase, given that the ionization energy of a hydrogen atom is 1312 kJ/mol?
asked
Feb 20
in
ThermoChemistry
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votes
1
answer
24
views
How do the properties of surfactants change with variations in their molecular structures and how do these changes affect their behavior in different types of surfaces?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
35
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What is the optimal temperature and pressure conditions required for the synthesis of polyethylene terephthalate from terephthalic acid and ethylene glycol?
asked
Feb 14
in
Chemical synthesis
0
votes
1
answer
46
views
How does the binding of transcription factors to specific DNA sequences regulate gene expression in eukaryotic cells?
asked
Feb 13
in
BioChemistry
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votes
1
answer
34
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How does the drug doxorubicin work in treating cancer, and what specific cellular processes and pathways does it target?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
20
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How does the presence of cholesterol affect the signaling and metabolism of lipids in cells? Provide a detailed explanation of the molecular mechanisms involved and their potential implications on cellular function.
asked
Feb 12
in
BioChemistry
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votes
1
answer
67
views
Calculate the standard heat of mixing when 50 mL of 1 M HCl is mixed with 100 mL of 1 M NaOH at 25°C. The standard heat of neutralization of 1 M HCl and 1 M NaOH is -57.32 kJ/mol.
asked
Feb 3
in
ThermoChemistry
0
votes
1
answer
46
views
Calculate the standard electrode potential for the redox reaction: Al(s) + Fe2+(aq) → Fe(s) + Al3+(aq) at 298K, given that the standard reduction potential for Fe2+/Fe is -0.44V and Al3+/Al is -1.66V.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
60
views
What is the coordination environment of the metal ion in the active site of the enzyme carbonic anhydrase, and how does this coordination affect the enzyme's catalytic activity?
asked
Jan 31
in
Coordination Chemistry
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votes
1
answer
87
views
Identify the unknown compound X using mass spectrometry. The compound has a molecular formula of C8H10O2 and a mass spectrum with a molecular ion peak at m/z 150 and base peak at m/z 77. Provide the structural formula of the compound and explain the fragmentation pattern observed in the mass spectrum.
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
61
views
How can gas chromatography be used to determine the composition of a mixture containing ethanol, methanol, and propanol?
asked
Jan 29
in
Analytical Chemistry
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votes
1
answer
43
views
Calculate the mole fraction of each component and the total pressure of a gas mixture at 25°C and 2 atm that contains 0.5 moles of methane (CH4) and 0.2 moles of ethane (C2H6).
asked
Jan 28
in
Chemistry
0
votes
1
answer
56
views
What is the oxidation state of the chromium ion in the compound K2CrO4?
asked
Jan 21
in
Inorganic Chemistry
0
votes
1
answer
56
views
What is the name of the theory that suggests that our behaviour is shaped by our childhood experiences?
asked
Jan 20
in
Psychology
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votes
1
answer
48
views
What is the relationship between the prefrontal cortex and executive functions?
asked
Jan 20
in
Psychology
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votes
1
answer
30
views
How does political correctness relate to psychology?
asked
Jan 20
in
Psychology
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votes
1
answer
26
views
How might the terminal decline hypothesis be explained?
asked
Jan 20
in
Psychology
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votes
1
answer
29
views
Who theorised attachment theory?
asked
Jan 17
in
Psychology
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