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1
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What is the correct stoichiometry and reaction mechanism for the preparation of 2,4-dichlorobenzoic acid from benzoic acid and chlorine gas, and what are safe and effective reaction conditions for this transformation?
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
20
views
What is the most effective way to determine the rate of an inorganic chemical reaction involving two or more reactants, when one or more of the reactants is in excess?
asked
4 days
ago
in
Inorganic Chemistry
0
votes
1
answer
31
views
What is the exchange current density for the oxidation reaction of copper in a 1 M CuSO4 solution, given that the electrochemical rate constant is 5.2 × 10^-3 cm/s and the surface area of the electrode is 0.05 cm^2?
asked
5 days
ago
in
ElectroChemistry
0
votes
1
answer
19
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What is the mechanism of electrophilic addition reaction of hydrogen halides (HBr, HCl, HI) with alkenes? Provide a step-by-step explanation and mechanism to support your answer.
asked
5 days
ago
in
Organic Chemistry
0
votes
1
answer
25
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What is the bond enthalpy of the carbon-oxygen double bond in a carbon dioxide molecule (CO2), given that the bond dissociation energies for C-O single and double bonds are 351 kJ/mol and 799 kJ/mol, respectively?
asked
Feb 18
in
Chemical bonding
0
votes
1
answer
32
views
What is the mechanism of action for sunscreen agents and how do they protect the skin from UV radiation?
asked
Feb 14
in
PhotoChemistry
0
votes
1
answer
34
views
What are the photochemical properties of spiropyran and how do these properties relate to its photochromic behavior?
asked
Feb 14
in
PhotoChemistry
0
votes
1
answer
37
views
How does the oxidation state of a compound change during a reduction reaction? Provide an example of a reaction where this occurs in organic chemistry.
asked
Feb 13
in
Organic Chemistry
0
votes
1
answer
8
views
What are the steps involved in designing a drug that specifically targets an enzyme or receptor, and how can these steps be optimized to produce a more effective drug with fewer side effects?
asked
Feb 12
in
Medicinal Chemistry
0
votes
1
answer
34
views
How can the efficiency of the hydrogen fuel production system be improved without compromising the quality and purity of the final product?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
65
views
How can the composition of a sample be determined using X-ray diffraction analysis and what specific information can be obtained from the analysis?
asked
Jan 29
in
Analytical Chemistry
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votes
1
answer
61
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Calculate the enthalpy of polymerization for the synthesis of polyethylene from its monomer using the given data:- Standard enthalpy of formation of ethylene (C2H4) = +52.3 kJ/mol- Standard enthalpy of formation of polyethylene (-[-CH2-]n-) = -256 kJ/mol
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
55
views
Calculate the enthalpy change when 50 ml of 0.2 M sodium chloride solution is mixed with 50 ml of 0.1 M silver nitrate solution. Given the enthalpy of precipitation of silver chloride as -64.8 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
61
views
A student needs to determine the diffusion coefficient of a gas at a given temperature and pressure using Graham's law of diffusion. The student has the necessary equipment to measure the rate of diffusion of the gas and the molecular weight of the gas is known. Determine the diffusion coefficient of the gas.
asked
Jan 22
in
Physical Chemistry
0
votes
1
answer
48
views
What is the oxidation state of sulfur in the compound H2SO4?
asked
Jan 21
in
Inorganic Chemistry
0
votes
1
answer
63
views
What type of functional group is present in the compound that has an IR stretch at 1700 cm^-1 and an NMR peak at 9 ppm in the ^1H NMR spectrum?
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
11
views
Please evaluate the social identity model of deindividuation effects SIDE .
asked
Jan 20
in
Psychology
0
votes
1
answer
60
views
What is one strength of existential psychology?
asked
Jan 20
in
Psychology
0
votes
1
answer
77
views
Who proposed the fear-avoidance model of pain?
asked
Jan 16
in
Psychology
0
votes
1
answer
94
views
How does social learning theory explain human sexuality?
asked
Jan 16
in
Psychology
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