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Answers by WPRSheila585
0
votes
13
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How does the presence of a reaction intermediate affect the rate of a chemical reaction, and can this effect be quantified using experimental techniques?
answered
3 days
ago
in
Chemical kinetics
0
votes
21
views
What is the coordination geometry of the metal center in the active site of the metalloenzyme carbonic anhydrase, and how does it contribute to the enzyme's function?
answered
5 days
ago
in
Coordination Chemistry
0
votes
19
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How does the excitation of lanthanide complexes affect their luminescence properties? Can this be used for any practical applications, such as sensing or imaging?
answered
5 days
ago
in
PhotoChemistry
0
votes
17
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What is the enthalpy change of ionization for magnesium (Mg) given that it requires 738 kJ/mol to remove the first electron and 1450 kJ/mol to remove the second electron from a Mg atom?
answered
5 days
ago
in
ThermoChemistry
0
votes
34
views
How does the absorption and emission of light affect the behavior and properties of different molecules and materials, and how can this knowledge be applied to develop more efficient photovoltaic cells?
answered
Feb 17
in
Quantum Chemistry
0
votes
38
views
How can we use molecular modeling to predict the properties of a chemical reaction and optimize the reaction conditions to increase the yield?
answered
Feb 13
in
Physical Chemistry
0
votes
36
views
What is the molar mass of iron(III) sulfate hexahydrate?
answered
Feb 13
in
Inorganic Chemistry
0
votes
42
views
How does the electron transport behave in nanoscale systems with different molecule configurations?
answered
Feb 13
in
Quantum Chemistry
0
votes
49
views
How can the selectivity and permeability of polymer-based membranes for water treatment be improved to effectively remove specific contaminants such as heavy metals or microplastics?
answered
Feb 10
in
Polymer Chemistry
0
votes
31
views
How can one determine whether a molecule exhibits geometrical or optical isomerism?
answered
Feb 5
in
Chemical bonding
0
votes
43
views
Calculate the standard enthalpy of formation of carbon dioxide given the following information: - Standard enthalpy of formation of graphite = 0 kJ/mol- Standard enthalpy of formation of oxygen gas = 0 kJ/mol- Enthalpy of combustion of graphite = -393.5 kJ/mol- Enthalpy of combustion of carbon monoxide = -283.0 kJ/mol- Enthalpy of combustion of hydrogen gas = -285.8 kJ/mol
answered
Feb 3
in
Chemical thermodynamics
0
votes
32
views
Calculate the standard enthalpy change for the reaction: 2C2H5OH(l) + 9O2(g) -> 6CO2(g) + 8H2O(l) given that the standard enthalpy of formation for C2H5OH(l) is -278 kJ/mol, for CO2(g) is -394 kJ/mol and for H2O(l) is -286 kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
0
votes
52
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What effect does adding a catalyst to a chemical system have on the equilibrium position and how does this impact the overall rate of reaction? Use the example of the Haber process to illustrate your answer with calculations.
answered
Jan 30
in
Chemical equilibrium
0
votes
52
views
How can the concentration of copper ions in a water sample be determined accurately using voltammetry?
answered
Jan 29
in
Analytical Chemistry
0
votes
12
views
How can social exchange theory be used to promote social change?
answered
Jan 17
in
Psychology
0
votes
40
views
What does social comparison theory propose?
answered
Jan 15
in
Psychology
0
votes
29
views
When do we perceive colour?
answered
Jan 15
in
Psychology
0
votes
39
views
What is the theoretical framework underpinning ethnography?
answered
Jan 15
in
Psychology
0
votes
41
views
What is the central auditory pathway?
answered
Jan 14
in
Psychology
0
votes
65
views
Who is associated with humanistic psychology?
answered
Jan 14
in
Psychology
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