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What is the equation for the reaction between toluene and nitric acid to prepare 2,4,6-trinitrotoluene, and how can the yield of the reaction be optimized?
answered
3 days
ago
in
Chemical synthesis
0
votes
20
views
What is the mass of product formed when 15.0 grams of magnesium reacts with excess hydrochloric acid? (Assume the reaction goes to completion)
answered
3 days
ago
in
Chemical reactions
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votes
21
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What is the relationship between the optical properties of molecules and their electronic excited states, and how can these properties be calculated using quantum chemistry methods? Provide specific examples of molecules and their electronic transitions.
answered
3 days
ago
in
Quantum Chemistry
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votes
29
views
How does the chemical composition of crude oil affect its impact on the environment after a spill?
answered
Feb 18
in
Environmental Chemistry
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votes
35
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How can we modify the chemical structure of existing pharmaceutical drugs to improve their effectiveness in treating gastrointestinal diseases, such as inflammatory bowel disease and acid reflux?
answered
Feb 13
in
Medicinal Chemistry
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votes
36
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What is the effect of different dopants on the electrical conductivity and mechanical properties of conductive polymers used in flexible electronics?
answered
Feb 12
in
Materials Chemistry
0
votes
46
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What is the purity of a sample of acetanilide that has a melting point range of 112-114°C when the literature melting point range for pure acetanilide is 114-115°C?
answered
Feb 12
in
Analytical Chemistry
0
votes
32
views
How can the synthesis of polyvinylpyrrolidone (PVP) from vinylpyrrolidone monomer (VP) be optimized to achieve the desired molecular weight and viscosity for specific industrial applications?
answered
Feb 11
in
Chemical synthesis
0
votes
60
views
Calculate the standard enthalpy change for the vaporization of 25 g of liquid nitrogen at its boiling point assuming constant pressure is 1 atm. Given the molar heat of vaporization of nitrogen is 5.56 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
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68
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What is the binding energy of the water dimer through quantum chemical calculations and how does it compare to the experimentally determined value?
answered
Jan 31
in
Computational Chemistry
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63
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What specific study techniques can a chemistry student use to help them better understand complex concepts such as quantum mechanics and chemical bonding?
answered
Jan 30
in
Chemical education
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votes
56
views
How can the social identity approach be used to understand intergroup communication?
answered
Jan 20
in
Psychology
0
votes
65
views
What are the main criticisms of the positive psychology perspective?
answered
Jan 20
in
Psychology
0
votes
27
views
Where was the first study on systematic desensitization conducted?
answered
Jan 20
in
Psychology
0
votes
60
views
According to the cognitive behavioural approach, how might cognitive distortions affect mental health?
answered
Jan 16
in
Psychology
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votes
22
views
How does the genetic basis of behaviour contribute to the evaluation of animal psychology?
answered
Jan 16
in
Psychology
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votes
29
views
What is meant by the term 'EEG'?
answered
Jan 15
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Psychology
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votes
39
views
What is the difference between flashbacks and nightmares?
answered
Jan 14
in
Psychology
0
votes
77
views
What type of microscope is used to see extremely small objects?
answered
Jan 8
in
Science
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70
views
What group of single-celled organisms lacking a nucleus comprises the most numerous organisms on earth?
answered
Jan 6
in
Science
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