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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
3 days
ago
in
Chemical synthesis
0
votes
1
answer
19
views
What is the most efficient method for synthesizing carbon nanotubes with a high degree of purity and structural uniformity, and how can this method be optimized to produce large quantities of nanotubes for industrial applications?
asked
4 days
ago
in
Materials Chemistry
0
votes
1
answer
24
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What is the most efficient and environmentally friendly method for disposing of radioactive waste and how can we minimize its impact on the environment?
asked
4 days
ago
in
Environmental Chemistry
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votes
1
answer
21
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How does the concept of orbital overlap explain the strength of covalent bonds in different molecules?
asked
6 days
ago
in
Physical Chemistry
0
votes
1
answer
24
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Identify the resonance structures of the carbonate ion (CO3^2-) and determine the formal charge on each atom in each resonance structure.
asked
Feb 18
in
Chemical bonding
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votes
1
answer
26
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Sure, here's a question for the student to solve:What is the bond dissociation energy (in kJ/mol) for the carbon-hydrogen bond in methane (CH4) given that the enthalpy change for the reaction CH4(g) → CH3(g) + H(g) is +435 kJ/mol?
asked
Feb 18
in
ThermoChemistry
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votes
1
answer
26
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What is the balanced chemical equation for the reaction of hydrochloric acid and sodium bicarbonate that results in the evolution of carbon dioxide gas?
asked
Feb 17
in
Chemical reactions
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votes
1
answer
30
views
What are the effects of sintering temperature on the microstructure and mechanical properties of alumina-zirconia composites?
asked
Feb 14
in
Materials Chemistry
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votes
1
answer
36
views
What are the mechanisms by which a photovoltaic material absorbs light and converts it into electrical energy, and what factors affect the efficiency of this process?
asked
Feb 14
in
PhotoChemistry
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votes
1
answer
32
views
What is the role of metal ions in the structure and function of metalloenzymes and metalloproteins? Provide examples of metalloenzymes and metalloproteins, and explain how the metal ion(s) are involved in their catalytic activity.
asked
Feb 13
in
Coordination Chemistry
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votes
1
answer
39
views
How do the metal ions in metalloproteins affect the protein structure and function, and what factors influence the metal ion coordination and reactivity in metalloenzymes?
asked
Feb 13
in
Coordination Chemistry
0
votes
1
answer
41
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What is the effect of incorporating different dopants (such as nitrogen or boron) into graphene using density functional theory calculations, and how does the electronic structure of the resulting materials change compared to pristine graphene?
asked
Feb 13
in
Computational Chemistry
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votes
1
answer
8
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How do G protein-coupled receptors (GPCRs) initiate signal transduction pathways in cells? Discuss the biochemical mechanism involved in the activation of GPCRs and the downstream signaling events that follow.
asked
Feb 13
in
BioChemistry
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votes
1
answer
38
views
How to design a system for the production of surfactants with maximum efficiency, using the minimum amount of raw materials and energy input, while ensuring safety measures and compliance with environmental regulations?
asked
Feb 12
in
Chemical engineering
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votes
1
answer
9
views
How can the design and synthesis of a polymer-based sensor or actuator be optimized for maximum sensitivity and efficiency?
asked
Feb 6
in
Polymer Chemistry
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votes
1
answer
35
views
How can chemistry teachers in underfunded schools obtain the necessary resources to offer engaging and experimental-based coursework to students despite limited funding?
asked
Feb 5
in
Chemical education
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votes
1
answer
51
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How does changing the reactant concentration affect the reaction rate and profitability in the production of a certain chemical compound?
asked
Feb 3
in
Chemical kinetics
+1
vote
1
answer
63
views
How does alternative RNA splicing affect the structure and function of proteins synthesized from a single gene, using specific examples from biochemical processes in living organisms?
asked
Jan 31
in
BioChemistry
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votes
1
answer
68
views
How can X-ray fluorescence (XRF) spectroscopy be used to accurately identify the presence and concentration of specific elements in a given sample, and what are the limitations of this technique for quantitative analysis in analytical chemistry?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
47
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Determine the oxidation state of the transition metal in potassium manganate (VII) and explain how you arrived at your answer.
asked
Jan 21
in
Inorganic Chemistry
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