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0
votes
21
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How does the Si/Al ratio affect the acidity of H-Mordenite zeolites? Use computational methods to investigate the interaction between acid site density and Si/Al ratio in H-Mordenite zeolites.
answered
1 day
ago
in
Computational Chemistry
0
votes
33
views
What is the rate constant of the reaction between hydrochloric acid and sodium thiosulfate?
answered
3 days
ago
in
Inorganic Chemistry
0
votes
19
views
What are the optimal conditions (temperature, length of reaction, concentration of reactants) for the preparation of 2,4,6-trinitrotoluene from toluene and nitric acid to achieve the highest yield possible?
answered
3 days
ago
in
Chemical synthesis
0
votes
24
views
How do the functional groups present in biomolecules like proteins and nucleic acids dictate their unique properties and functions in living systems?
answered
5 days
ago
in
Organic Chemistry
0
votes
37
views
How does the concentration of nitrogen and phosphorus affect the growth of harmful algae in aquatic ecosystems, and how can we effectively reduce these nutrient pollutants to improve water quality?
answered
Feb 19
in
Environmental Chemistry
0
votes
23
views
How does the binding of transcription factor proteins to specific DNA sequences regulate gene expression in prokaryotes and eukaryotes?
answered
Feb 17
in
BioChemistry
0
votes
28
views
How does the addition of a strong acid or base affect the ionization of a weak acid or base and what is the resulting change in equilibrium concentration of ions in a solution? Provide an example with relevant calculations.
answered
Feb 17
in
Chemical equilibrium
0
votes
46
views
What is the effect of coadministration of Warfarin and Aspirin on the pharmacokinetics and pharmacodynamics of each drug?
answered
Feb 12
in
Medicinal Chemistry
0
votes
49
views
Given the balanced chemical equation: C6H12O6 + 6O2 -> 6CO2 + 6H2O The enthalpy of formation of glucose is -1273 kJ/mol and the enthalpy of formation of water is -286 kJ/mol. Calculate the enthalpy change of the oxidation of glucose in kJ/mol.
answered
Feb 4
in
ThermoChemistry
0
votes
35
views
Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C given that the enthalpy of formation of solid carbon dioxide and gaseous carbon dioxide are -393.5 kJ/mol and -393.5 kJ/mol, respectively.
answered
Feb 3
in
Chemical thermodynamics
0
votes
30
views
Calculate the overpotential (in millivolts) for the reduction of Cu2+ to Cu on a copper electrode at 25°C, given that the standard reduction potential of Cu2+ to Cu is +0.34 V and the actual voltage is 0.32 V.
answered
Feb 3
in
ElectroChemistry
0
votes
76
views
What is the impact of carbon dioxide on global warming and how does it contribute as a greenhouse gas?
answered
Jan 31
in
Environmental Chemistry
0
votes
49
views
Calculate the standard enthalpy of formation for methane gas using quantum chemistry calculations.
answered
Jan 31
in
Quantum Chemistry
0
votes
78
views
Identify the type of isomerism exhibited by the organic compounds 2-chlorobutane and 2-methylpropene and explain the difference between the two.
answered
Jan 30
in
Organic Chemistry
0
votes
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?
answered
Jan 29
in
Analytical Chemistry
0
votes
49
views
Calculate the entropy change (ΔS) for the reaction below at 298 K:2H2(g) + O2(g) → 2H2O(l)Given the standard molar entropy values are:H2(g) = 130.68 J/K molO2(g) = 205.03 J/K molH2O(l) = 69.91 J/K mol
answered
Jan 23
in
Chemical thermodynamics
0
votes
63
views
Calculate the enthalpy of combustion of butane (C4H10) in kJ/mol given that its heat of formation value is -126.6 kJ/mol and the heat of formation values of CO2 and H2O are -393.5 kJ/mol and -241.8 kJ/mol, respectively.
answered
Jan 23
in
ThermoChemistry
0
votes
88
views
What is the product formed when 1-bromobutane is reacted with aqueous sodium hydroxide? Draw the mechanism that explains the reaction pathway of this nucleophilic substitution reaction.
answered
Jan 21
in
Organic Chemistry
0
votes
40
views
What is the relationship between language use and power?
answered
Jan 17
in
Psychology
0
votes
37
views
According to the psychodynamic theory, what is anxiety?
answered
Jan 17
in
Psychology
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