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0
votes
1
answer
29
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How does the size and shape of a catalyst affect its activity in a density functional theory calculation of a catalytic reaction?
asked
Feb 24
in
Computational Chemistry
0
votes
1
answer
34
views
What is the bond enthalpy of the O-H bond in a molecule of water? Show the calculation using experimental data and explain the significance of the bond enthalpy value obtained.
asked
Feb 18
in
Chemical bonding
0
votes
1
answer
36
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How does the adsorption of gas molecules on the surface of a solid depend on temperature and pressure? Provide a detailed explanation with experimental evidence and theoretical models.
asked
Feb 17
in
Physical Chemistry
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votes
1
answer
32
views
How do persistent organic pollutants (POPs) affect the ecosystem of a local water source, and what methods can be used to effectively mitigate their impact?
asked
Feb 14
in
Environmental Chemistry
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votes
1
answer
57
views
What are the specific intermolecular forces present in water and how do they affect the boiling point of the substance?
asked
Feb 13
in
Chemical bonding
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1
answer
65
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How can the understanding of the role of chemistry in society and the economy be improved among the general public, and what are some effective methods that can be used to increase awareness and promote interest in the subject?
asked
Feb 13
in
Chemical education
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1
answer
53
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How does exposure to high levels of nitrogen oxides in air pollution affect respiratory function and increase the risk of respiratory diseases in humans?
asked
Feb 13
in
Environmental Chemistry
0
votes
1
answer
79
views
How can the properties of polymer-based membranes be optimized for efficient and cost-effective water treatment?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
33
views
How can new drugs be designed to effectively target and treat neurological disorders such as Alzheimer's and Parkinson's disease while minimizing unwanted side effects and toxicity to the patient's body?
asked
Feb 5
in
Medicinal Chemistry
0
votes
1
answer
103
views
What is the electronic configuration and molecular orbital diagram for the carbon monoxide (CO) molecule?
asked
Jan 31
in
Quantum Chemistry
0
votes
1
answer
68
views
How can electrophoresis be used to analyze the composition of a protein sample and identify the presence of specific proteins?
asked
Jan 29
in
Analytical Chemistry
0
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1
answer
73
views
Calculate the lattice energy of magnesium oxide (MgO) given that the magnesium ion has a charge of +2 and the oxide ion has a charge of -2. The lattice energy can be calculated using the Born-Haber cycle and the following data:- The enthalpy of sublimation of magnesium (Mg) is 147 kJ/mol- The first ionization energy of magnesium is 738 kJ/mol- The enthalpy of formation of MgO is -601 kJ/mol- The electron affinity of oxygen is -141 kJ/mol- The enthalpy of dissociation of oxygen molecules is 498 kJ/mol.
asked
Jan 23
in
Inorganic Chemistry
0
votes
1
answer
88
views
Calculate the activation energy for the reaction between methane and oxygen to form carbon dioxide and water using density functional theory calculations.
asked
Jan 23
in
Computational Chemistry
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1
answer
87
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A student wants to determine the concentration of silver ions (Ag+) in a solution. Using an Ag/Ag+ reference electrode, the student measures the cell potential to be +0.56 V when the solution is electrolyzed for 25 minutes at a constant current of 0.50 A. The volume of the solution is 150 mL. What is the concentration of silver ions in the solution in mol/L?
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
47
views
According to ecological systems theory, what is the microsystem?
asked
Jan 20
in
Psychology
0
votes
1
answer
40
views
According to the dopamine hypothesis, what is the role of dopamine in schizophrenia?
asked
Jan 20
in
Psychology
0
votes
1
answer
107
views
When working with communities, what is the term for being sensitive to and accepting of diversity?
asked
Jan 17
in
Psychology
0
votes
1
answer
107
views
How do cognitive-behavioural therapy CBT and acceptance and commitment therapy ACT differ?
asked
Jan 17
in
Psychology
0
votes
1
answer
47
views
What is the role of peer pressure in adolescent identity development?
asked
Jan 15
in
Psychology
0
votes
1
answer
117
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According to the biopsychosocial model, what factors contribute to addiction?
asked
Jan 15
in
Psychology
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