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What is the stepwise chemical reaction mechanism involved in the preparation of 2,4,6-trinitrotoluene from toluene and nitric acid, and what are the conditions required for each step?
asked
Feb 22
in
Chemical synthesis
0
votes
1
answer
26
views
What is the effect of increasing solvent polarity on the rate of the photochemical reaction of benzophenone in different solvents, such as ethanol, water, and acetone?
asked
Feb 19
in
PhotoChemistry
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votes
1
answer
39
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How does the coordination chemistry of lanthanide and actinide complexes differ from that of other transition metals?
asked
Feb 19
in
Coordination Chemistry
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votes
1
answer
62
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What is the effect of chirality on the photochemical properties of molecules and how does it impact the formation of enantiomers? Provide a detailed explanation with relevant examples.
asked
Feb 12
in
PhotoChemistry
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votes
1
answer
42
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Calculate the standard enthalpy change for the sublimation of iodine (I2) if 1 mole of I2(s) is converted to 1 mole of I2(g) at 25°C and 1 bar pressure. Given the following information:- The standard enthalpy of fusion of I2 is 15.4 kJ/mol- The standard enthalpy of vaporization of I2 is 41.3 kJ/mol- The standard entropy change for the sublimation of I2 is 62.4 J/mol K.
asked
Feb 3
in
Chemical thermodynamics
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1
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91
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Calculate the standard enthalpy change for the following reaction: 2H2(g) + O2(g) → 2H2O(l)Given the standard enthalpies of formation for H2O (l), H2 (g) and O2 (g) are -285.8 kJ/mol, 0 kJ/mol and 0 kJ/mol, respectively.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
102
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What is the role of ATP synthase in the oxidative phosphorylation process of the citric acid cycle? How does it contribute to the production of ATP molecules in the cell?
asked
Jan 31
in
BioChemistry
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1
answer
84
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Calculate the enthalpy of vaporization of water given the following information: - The boiling point of water is 100°C- The specific heat capacity of liquid water is 4.18 J/g·°C- The specific heat capacity of steam is 1.84 J/g·°C- The heat of fusion of water is 40.7 kJ/mol - The molar mass of water is 18.015 g/mol- The heat capacity of the container is negligible- Assume that the vaporized water behaves ideally and has a constant heat capacity
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
73
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Calculate the enthalpy of adsorption of benzene vapor on silica gel at 25°C and a pressure of 2.0 atm, given that the mass of adsorbent used is 0.25 g and the adsorption capacity of silica gel for benzene at this temperature and pressure is 0.75 g/g.
asked
Jan 23
in
ThermoChemistry
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1
answer
54
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Calculate the corrosion potential of a silver metal in a solution containing 0.1 M silver nitrate and 1 M nitric acid given that the standard reduction potential of the Ag⁺/Ag couple is +0.80 V and the standard reduction potential of the NO₃⁻/NO₂⁻ couple is +0.96 V.
asked
Jan 23
in
ElectroChemistry
0
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1
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128
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What is the name of the theory that proposes that people can be influenced to perform immoral actions by being given an authority figure?
asked
Jan 20
in
Psychology
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1
answer
81
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What is falsifiability in relation to theories?
asked
Jan 20
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Psychology
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votes
1
answer
69
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Who developed the concept of antipsychotic-induced weight gain?
asked
Jan 16
in
Psychology
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votes
1
answer
54
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What is theory evaluation?
asked
Jan 15
in
Psychology
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1
answer
45
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What are the limitations of the nativist perspective in explaining language development?
asked
Jan 15
in
Psychology
0
votes
1
answer
33
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What is the difference between a correlational study and an experiment?
asked
Jan 15
in
Psychology
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votes
1
answer
64
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What is the role of mental health nonprofits?
asked
Jan 14
in
Psychology
0
votes
1
answer
40
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Which organisms get their energy source and carbon source from organic sources?
asked
Jan 8
in
Science
0
votes
1
answer
58
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Which elements fall between metals and nonmetals in the periodic table?
asked
Jan 8
in
Science
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1
answer
37
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What kind of charge do electrons have?
asked
Jan 7
in
Science
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