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1
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What is the optimum pH for the adsorption of methylene blue dye onto activated carbon and how does it affect the efficiency of the adsorption process?
asked
Feb 22
in
Surface Chemistry
0
votes
1
answer
33
views
What is the most efficient method for synthesizing a carboxylic acid from an alkyl halide? Provide a detailed mechanism, including all reagents and reaction conditions involved.
asked
Feb 21
in
Organic Chemistry
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votes
1
answer
31
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What is the lattice energy of NaCl? Given: The ionic radius of Na+ is 0.98 Å, the ionic radius of Cl- is 1.81 Å, and the lattice energy of NaCl is -787.3 kJ/mol.
asked
Feb 20
in
Inorganic Chemistry
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votes
1
answer
27
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What is the detailed mechanism of the electrophilic aromatic substitution reaction of nitration using nitric acid and sulfuric acid as the reagents on benzene?
asked
Feb 20
in
Organic Chemistry
0
votes
1
answer
40
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What is the surface tension of a liquid and how is it measured? Provide an experimental method to determine the surface tension of a given liquid and discuss the factors that affect surface tension.
asked
Feb 17
in
Surface Chemistry
0
votes
1
answer
34
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How can we use quantum chemistry calculations to predict the selectivity of a catalyst towards a specific reaction pathway?
asked
Feb 14
in
Quantum Chemistry
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1
answer
40
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How does the band gap of a semiconductor material change with its doping concentration, as predicted by density functional theory calculations?
asked
Feb 12
in
Computational Chemistry
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votes
1
answer
65
views
How can the synthesis of biodegradable polymers be optimized for improved mechanical properties and degradation rates?
asked
Feb 11
in
Polymer Chemistry
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votes
1
answer
36
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How can molecular docking studies be used to design more effective and specific drugs?
asked
Feb 5
in
Computational Chemistry
0
votes
1
answer
111
views
Calculate the standard enthalpy change for the complete combustion of methane gas (CH4) at 25°C and 1 atm pressure, given that the standard enthalpy of formation for CH4 is -74.9 kJ/mol and the standard enthalpy of formation for water (H2O) is -285.8 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
82
views
How does the application of ab initio calculations help in determining the electronic structure and molecular properties of small molecules such as H2, O2, and N2, and what are the practical applications of these calculations in the field of chemistry?
asked
Jan 30
in
Computational Chemistry
0
votes
1
answer
76
views
Calculate the lattice energy of potassium oxide (K2O) given that the ionic radii of K+ and O2- are 152 pm and 140 pm respectively, and the lattice enthalpy of formation of K2O is -3803 kJ/mol.
asked
Jan 23
in
Inorganic Chemistry
0
votes
1
answer
40
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What is the significance of the 'two-eyed seeing' approach when evaluating indigenous psychology theories?
asked
Jan 20
in
Psychology
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votes
1
answer
47
views
What is internalization?
asked
Jan 17
in
Psychology
+1
vote
0
answers
49
views
When was the study conducted on the sleep patterns of Fly-in-fly-out workers?
asked
Jan 17
in
Psychology
0
votes
1
answer
54
views
Where does the criterion of heuristic value fit in theory evaluation?
asked
Jan 16
in
Psychology
0
votes
1
answer
96
views
What is the attachment theory's implications on relationships?
asked
Jan 15
in
Psychology
0
votes
1
answer
45
views
Where does the Psychological Reactance Theory suggest addiction comes from?
asked
Jan 15
in
Psychology
0
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1
answer
51
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What is the difference between emotion-focused and problem-focused coping?
asked
Jan 14
in
Psychology
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votes
1
answer
64
views
What is the impact of chronic stress on mental health?
asked
Jan 14
in
Psychology
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