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What is the mechanism of the reaction between hydrazine and 2,4-dinitrochlorobenzene in the preparation of 2,4-dinitrophenylhydrazine? Provide a detailed explanation of each step involved in the reaction.
answered
Feb 22
in
Chemical synthesis
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votes
87
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What is the mechanism of the photochemical reaction of benzene with chlorine, and how does the substitution pattern of the resulting chlorobenzene differ from that of a typical electrophilic aromatic substitution?
answered
Feb 22
in
PhotoChemistry
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votes
85
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What is the coordination number and geometry of the metal ion in the active site of hemoglobin, a metalloprotein that carries oxygen in the blood? How does the coordination of the heme group with the iron ion contribute to the protein's function?
answered
Feb 20
in
Coordination Chemistry
0
votes
96
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How does the length of the polymer chain affect the conformational properties of a polyethylene molecule, as determined by Monte Carlo simulations?
answered
Feb 20
in
Computational Chemistry
0
votes
84
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What is the mechanism of electrophilic addition reaction of HBr with propene?
answered
Feb 20
in
Organic Chemistry
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77
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What is the effect of different photosensitizers (e.g. porphyrins, phthalocyanines) on the rate of the photochemical reaction of a specific compound (e.g. benzophenone) and what factors influence this effect?
answered
Feb 19
in
PhotoChemistry
0
votes
79
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How does the activity of a catalyst on a solid surface vary with changes in temperature and pressure during a reaction? Provide specific examples and explain the underlying surfacial mechanisms involved.
answered
Feb 17
in
Surface Chemistry
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votes
128
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What is the structure and bonding of the metal complexes in gadolinium-based metallofullerenes, and how do they affect the magnetic properties of the compound?
answered
Feb 13
in
Coordination Chemistry
0
votes
126
views
How many ATP molecules are generated through the process of glycolysis when glucose is converted into pyruvate?
answered
Feb 13
in
BioChemistry
0
votes
111
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How can the biodegradability of polylactic acid (PLA) be improved by altering the synthesis process or introducing additives?
answered
Feb 6
in
Polymer Chemistry
0
votes
109
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How can quantum information processing and quantum computing be applied in the field of drug design to improve the efficiency and accuracy of predicting the behavior of molecules and their interactions with biological systems?
answered
Feb 5
in
Quantum Chemistry
0
votes
131
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How does changing the stoichiometry of reactants in a chemical reaction affect the rate of reaction, and how can we experimentally investigate this relationship?
answered
Feb 3
in
Chemical kinetics
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votes
122
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What is the effect of changing the stoichiometric ratio of two reactants on the rate of a chemical reaction?
answered
Feb 3
in
Chemical kinetics
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74
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Calculate the lattice energy of CaCl2 given that the distance between the Ca2+ and Cl- ions in the crystal lattice is 0.231 nm and the Born-Lande equation constant is 2.21 x 10^-19 J nm.
answered
Jan 23
in
Inorganic Chemistry
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97
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Calculate the enthalpy change for the reaction: 2H2(g) + O2(g) → 2H2O(l) using Hess's law given the following reactions: 2H2(g) + O2(g) → 2H2O(g) ΔH1 = -483.6 kJ/mol 2H2O(g) → 2H2O(l) ΔH2 = -40.7 kJ/mol
answered
Jan 23
in
ThermoChemistry
0
votes
153
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Calculate the enthalpy change for the hydrolysis of sucrose given that 10.0 g of sucrose was completely hydrolyzed in excess water. The reaction takes place at 25°C and 1 atm pressure. The following reaction is involved: C12H22O11(s) + H2O(l) → 12C(s) + 11H2O(l) The enthalpy of formation of C12H22O11(s) is -2226.8 kJ/mol and the enthalpy of formation of H2O(l) is -285.8 kJ/mol.
answered
Jan 23
in
ThermoChemistry
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214
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Balance the following chemical equation of an inorganic compound: Fe2O3 + CO → Fe + CO2
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Jan 21
in
Inorganic Chemistry
0
votes
73
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What are the underlying principles of CBT?
answered
Jan 16
in
Psychology
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60
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What is the difference between a placebo and a double-blind study?
answered
Jan 16
in
Psychology
0
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47
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What is Transformational Leadership?
answered
Jan 16
in
Psychology
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