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User BlondellHock
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What are the factors that affect the photochemical properties of lanthanide complexes and how do these properties compare to those of other metal complexes?
asked
Feb 22
in
PhotoChemistry
0
votes
1
answer
89
views
What is the effect of temperature on the rate of the reaction between hydrochloric acid and sodium thiosulfate? Provide experimental evidence for your answer.
asked
Feb 20
in
Chemical kinetics
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votes
1
answer
81
views
What is the coordination number and geometrical shape of the complex formed between copper (II) ion and ethylenediamine ligand? Provide a detailed synthesis and characterization of the compound along with the spectroscopic analysis results.
asked
Feb 18
in
Coordination Chemistry
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votes
1
answer
86
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How does the choice of diisocyanate and polyol affect the properties of the synthesized polyurethane? Conduct a comparative study on the properties of the polyurethane synthesized using different combinations of diisocyanate and polyol.
asked
Feb 18
in
Chemical synthesis
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1
answer
93
views
What is the predicted geometry and polarity of the inorganic molecule sulfur hexafluoride (SF6)?
asked
Feb 14
in
Inorganic Chemistry
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votes
1
answer
116
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How do genetic variations affect the response of different individuals to the same drug and how can medicinal chemists use this information to design personalized treatments?
asked
Feb 13
in
Medicinal Chemistry
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1
answer
125
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Design a distillation column to separate a mixture of ethanol and water when the initial mixture contains 30% ethanol and 70% water. The desired final concentration of ethanol in the distilled product is 95%. The distillation column is 14 trays high and the reflux ratio is set at 2.2. Calculate the minimum number of theoretical trays required in the distillation column and provide the final composition of the ehtanol product stream.
asked
Feb 4
in
Chemical engineering
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votes
1
answer
149
views
What is the effect of adding a methyl group to a benzene ring on its electronic transport properties, as predicted by density functional theory calculations, and how does this relate to its potential use in organic electronic devices?
asked
Jan 30
in
Computational Chemistry
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votes
1
answer
170
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What is the concentration of sodium ions in a 0.5M solution of NaCl using a sodium-selective electrode?
asked
Jan 30
in
Analytical Chemistry
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1
answer
104
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How can a chemistry student effectively learn and practice laboratory techniques when access to laboratory equipment and facilities is limited?
asked
Jan 30
in
Chemical education
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votes
1
answer
101
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How can a chemistry student effectively conduct experiments and learn practical skills with limited access to laboratory equipment and facilities?
asked
Jan 30
in
Chemical education
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votes
1
answer
82
views
Please compare depression and anxiety.
asked
Jan 20
in
Psychology
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votes
1
answer
56
views
What is the maintenance stage?
asked
Jan 20
in
Psychology
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votes
1
answer
71
views
When evaluating a theory, what is the criterion for testability?
asked
Jan 17
in
Psychology
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votes
1
answer
59
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Who is associated with the humanistic-existential theory?
asked
Jan 16
in
Psychology
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votes
1
answer
67
views
Who is associated with the humanistic theory?
asked
Jan 16
in
Psychology
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votes
1
answer
47
views
According to classical conditioning, how are behaviours learned?
asked
Jan 16
in
Psychology
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votes
1
answer
48
views
Who proposed the self-determination theory of personality?
asked
Jan 15
in
Psychology
0
votes
1
answer
111
views
When do we use gestalt principles?
asked
Jan 15
in
Psychology
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votes
1
answer
112
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What is 'cultural psychology'?
asked
Jan 14
in
Psychology
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