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What is the optimal reaction conditions (temperature, concentration, and stoichiometry) for the preparation of 2,4,6-trinitrotoluene from toluene and nitric acid to achieve maximum yield and purity?
asked
5 days
ago
in
Chemical synthesis
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votes
1
answer
26
views
What is the most effective method for synthesizing gold nanoparticles with a narrow size distribution suitable for use in medical imaging?
asked
6 days
ago
in
Materials Chemistry
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votes
1
answer
24
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How does the liver synthesize and transport lipids, and what role do lipoproteins play in this process?
asked
Feb 20
in
BioChemistry
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votes
1
answer
25
views
How does the addition of a specific catalyst affect the reaction rate of the hydrogen peroxide and potassium iodide reaction?
asked
Feb 17
in
Chemical kinetics
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votes
1
answer
26
views
How does the acidity of carboxylic acids vary with the substituents on the molecule? Compare the acidity of acetic acid with that of benzoic acid and explain why benzoic acid is a stronger acid.
asked
Feb 17
in
Organic Chemistry
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votes
1
answer
30
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What is the effect of metal substitution on the electrochemical and spectroscopic properties of metalloporphyrins and metallophthalocyanines? Provide examples and explain the trends observed.
asked
Feb 13
in
Coordination Chemistry
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votes
1
answer
39
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What is the effect of ligand substitution on the photochemical properties of a transition metal complex?
asked
Feb 13
in
PhotoChemistry
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votes
1
answer
34
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What is the effect of increasing the concentration of reactants on the reaction rate of the reaction between potassium permanganate and oxalic acid in an acidic medium?
asked
Feb 13
in
Chemical kinetics
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votes
1
answer
43
views
How do different drug combinations affect the absorption and metabolism of each other in the body?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
43
views
What is the role of copper ions in the active site of the enzyme cytochrome c oxidase, and how does the coordination chemistry of the copper ions contribute to the enzyme's function in cellular respiration?
asked
Feb 12
in
Coordination Chemistry
0
votes
1
answer
40
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How does the coordination chemistry of metalloenzymes and metalloproteins affect their functions in biological systems? Provide specific examples to support your answer.
asked
Feb 12
in
Coordination Chemistry
0
votes
1
answer
25
views
How can computational studies be used to optimize the performance of metal-organic frameworks in gas storage and separation applications?
asked
Feb 5
in
Computational Chemistry
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votes
1
answer
31
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How can chemistry teachers emphasize practical applications of chemistry in the classroom to help students better understand the relevance of the subject in real-world scenarios? Provide specific examples of how practical applications can be incorporated into chemistry lessons.
asked
Feb 5
in
Chemical education
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votes
1
answer
55
views
Calculate the standard enthalpy change (ΔH°) for the combustion reaction of ethanol (C2H5OH) if the heat evolved is 1367.6 kJ and the molar mass of ethanol is 46.07 g/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
35
views
Calculate the rate of electroplating of copper on a metallic surface at a current of 2.5 amperes for a duration of 3 hours using a copper nitrate solution with a concentration of 0.2 M. Given that the standard potential of the reduction reaction of Cu2+ to Cu is +0.34 V and the charge of one mole of electrons is 96500 C/mol.
asked
Feb 3
in
ElectroChemistry
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votes
1
answer
11
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Calculate the anodic Tafel slope for a reaction with an exchange current density of 2x10^-4 A cm^-2 if the current density at an anodic potential of 0.1V vs the standard hydrogen electrode (SHE) is 0.5 mA cm^-2 and at 0.2V vs SHE is 2.0 mA cm^-2. Assume a linear relationship between current density and overpotential.
asked
Jan 23
in
ElectroChemistry
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1
answer
47
views
According to the gender schema theory, how do individuals learn gender roles?
asked
Jan 20
in
Psychology
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votes
1
answer
33
views
Who proposed the dual process theory of decision making?
asked
Jan 20
in
Psychology
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votes
1
answer
65
views
What is the bottom-up approach's evaluation of visual illusions?
asked
Jan 20
in
Psychology
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votes
1
answer
21
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Who authored the Australia Institute report on the mental health of Fly-in-fly-out workers?
asked
Jan 17
in
Psychology
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