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0
votes
1
answer
29
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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?
asked
Feb 22
in
Chemical synthesis
0
votes
1
answer
40
views
What is the expected boiling point of a substance that forms strong hydrogen bonding among its molecules compared to a substance that has weak van der Waals forces?
asked
Feb 20
in
Chemical bonding
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votes
1
answer
30
views
What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) in water at a temperature of 25°C and how does it vary with the addition of salt to the solution?
asked
Feb 19
in
Surface Chemistry
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votes
1
answer
30
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How does the coordination chemistry of metalloenzymes such as carbonic anhydrase affect their enzymatic activity?
asked
Feb 19
in
Coordination Chemistry
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votes
1
answer
43
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What is the chemical composition and source of microplastics found in the stomach contents of marine organisms in a specific coastal region, and how does this pollution affect the organism's digestive system, metabolism, and overall health?
asked
Feb 18
in
Environmental Chemistry
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votes
1
answer
30
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How does surface modification of biomaterials affect their biocompatibility and cellular interactions?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
33
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How do proteases play a role in protein degradation and turnover, and what are the specific mechanisms behind their actions?
asked
Feb 14
in
BioChemistry
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votes
1
answer
34
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What is the optimal reaction conditions to synthesize polyethylene terephthalate from terephthalic acid and ethylene glycol, and how does the reaction conditions affect the properties of the resulting polymer?
asked
Feb 14
in
Chemical synthesis
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votes
1
answer
25
views
How can we design a drug that selectively targets the active site of an enzyme involved in cancer cell proliferation, while avoiding off-target effects on healthy cells?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
30
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How can coordination chemistry principles be applied to design more efficient chelating agents for the treatment of heavy metal poisoning in humans?
asked
Feb 5
in
Coordination Chemistry
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votes
1
answer
39
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How can magnetic resonance spectroscopy be used to determine the purity and concentration of a sample in organic chemistry?
asked
Feb 5
in
Physical Chemistry
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votes
1
answer
71
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Calculate the standard enthalpy change (in kJ/mol) for the neutralization reaction of hydrochloric acid (HCl) and sodium hydroxide (NaOH) using the following information: HCl (aq) + NaOH (aq) → NaCl (aq) + H2O(l)ΔHf° (kJ/mol): HCl (aq) = -167.2 NaOH (aq) = -469.2 NaCl (aq) = -407.3 H2O(l) = -285.8
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
87
views
What are the photochemical properties of a specific bioluminescent organism and how can these properties be utilized for practical applications, such as in biomedical imaging or in the development of new technologies for light generation?
asked
Jan 31
in
PhotoChemistry
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votes
1
answer
100
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What is the unidentified compound present in a given sample, and what is its molecular weight, using mass spectrometry?
asked
Jan 31
in
Analytical Chemistry
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votes
1
answer
52
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How can the amount of chloride ions in a water sample be determined using potentiometry?
asked
Jan 29
in
Analytical Chemistry
0
votes
1
answer
68
views
How can Raman spectroscopy be used to identify the presence of a specific organic compound in a mixture, and what are the limitations of this technique in terms of sensitivity and specificity?
asked
Jan 29
in
Analytical Chemistry
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votes
1
answer
93
views
A student wants to find out the cell potential of a voltaic cell made up of a nickel electrode and an iron electrode. The nickel electrode is in a 0.1 M nickel (II) sulfate solution, and the iron electrode is in a 0.1 M iron (II) sulfate solution. What is the cell potential of this voltaic cell at standard conditions (25°C and 1 atm of pressure) given the standard reduction potentials for Ni2+/Ni and Fe2+/Fe are -0.25 V and -0.44 V, respectively?
asked
Jan 22
in
ElectroChemistry
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votes
1
answer
120
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A student is trying to synthesize a compound in the lab. The theoretical yield of the compound is 15 g, but due to some errors during the experiment, the student was only able to obtain 10 g in the end. Calculate the percent yield of the experiment.
asked
Jan 22
in
Chemical reactions
0
votes
1
answer
75
views
A chemistry student wants to prepare 250 mL of 0.15 M NaOH solution from a solid compound. What mass of NaOH is required to achieve this concentration?
asked
Jan 21
in
Inorganic Chemistry
0
votes
1
answer
117
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What is the major product formed when 1-bromo-2-methylcyclohexane is treated with sodium ethoxide in ethanol at a temperature of 60°C?
asked
Jan 21
in
Organic Chemistry
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