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0
votes
1
answer
31
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How does the photochemical behavior differ between enantiomers, and what specific factors contribute to these differences?
asked
Feb 22
in
PhotoChemistry
0
votes
1
answer
38
views
What is the hybridization of the carbon atom in methane (CH₄)?
asked
Feb 20
in
Chemical bonding
0
votes
1
answer
36
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How does the electronic transport property (conductivity) of a graphene nanoribbon change as the width of the ribbon is varied, as predicted by density functional theory (DFT) calculations?
asked
Feb 20
in
Computational Chemistry
0
votes
1
answer
25
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What is the effect of solvent polarity on the intermolecular interactions between two molecules of different polarities?
asked
Feb 19
in
Quantum Chemistry
0
votes
1
answer
27
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What is the effect of molecular weight on the melting point of polyethylene?
asked
Feb 19
in
Physical Chemistry
0
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1
answer
37
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How can we predict the stability of inorganic compounds in relation to their structural features and electronic configuration?
asked
Feb 14
in
Inorganic Chemistry
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votes
1
answer
38
views
How does the use of photovoltaic cells, which are the primary component of solar panels, impact the environment in terms of resource consumption and waste generation?
asked
Feb 14
in
Environmental Chemistry
0
votes
1
answer
37
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How can the polymerization reaction be optimized to maximize the yield of the desired polymer while minimizing the production of undesired byproducts in the process?
asked
Feb 10
in
Chemical engineering
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1
answer
28
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How can small molecules be designed and modified to target specific metabolic pathways in the treatment of metabolic disorders such as diabetes or obesity?
asked
Feb 5
in
Medicinal Chemistry
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1
answer
42
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How can small molecule inhibitors be designed to target specific molecules involved in the pathogenesis of autoimmune diseases such as rheumatoid arthritis?
asked
Feb 5
in
Medicinal Chemistry
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1
answer
69
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Calculate the standard enthalpy change for the precipitation reaction of 50.0 grams of barium chloride and 75.0 grams of potassium sulfate to form solid barium sulfate and aqueous potassium chloride, given that the heat of formation of solid barium sulfate is -1474 kJ/mol and aqueous potassium chloride is -436 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
98
views
What is the predicted reactivity trend of alkaline earth metals and halogens based on their electronic configurations?
asked
Jan 31
in
Inorganic Chemistry
0
votes
1
answer
16
views
What type of bond is formed between a magnesium atom and a chlorine atom in the compound magnesium chloride (MgCl2)?
asked
Jan 30
in
Chemical bonding
0
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1
answer
63
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Calculate the Gibbs free energy change for the following electrochemical reaction at 298 K:2Fe³⁺(aq) + 2e⁻ → 2Fe²⁺(aq)Given that the standard Gibbs energy of formation of Fe³⁺(aq) is -290.5 kJ/mol and that of Fe²⁺(aq) is -91.2 kJ/mol.
asked
Jan 23
in
ElectroChemistry
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votes
1
answer
70
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Calculate the enthalpy change for the precipitation reaction between 25.0 mL of 0.100 M silver nitrate (AgNO3) and excess calcium chloride (CaCl2) solution at 25°C. The balanced equation for the reaction is:AgNO3(aq) + CaCl2(aq) → AgCl(s) + Ca(NO3)2(aq)Assume the density of the solutions is equal to 1.00 g/mL and the solutions have the same specific heat as water (4.18 J/g°C).
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
79
views
Calculate the bond dissociation energy (in kJ/mol) for the carbon-hydrogen bond in methane (CH4) using the following information: - The enthalpy change for the reaction CH4(g) + 2O2(g) → CO2(g) + 2H2O(g) is -890.3 kJ/mol. - The enthalpy change for the reaction 2H2(g) + O2(g) → 2H2O(g) is -484.2 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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1
answer
151
views
A chemistry student is given a chemical equation for the reaction between calcium chloride and sodium carbonate. The equation is unbalanced and the student must balance it, while ensuring that the correct stoichiometric coefficients for each compound are used. The student must then calculate the mass of product formed when 5.0 grams of calcium chloride react completely with excess sodium carbonate. What is the mass of the product formed?
asked
Jan 22
in
Inorganic Chemistry
0
votes
1
answer
113
views
Where does the debate between mind-body dualism and monism take place?
asked
Jan 20
in
Psychology
0
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1
answer
63
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What is the criterion of accuracy in theory evaluation?
asked
Jan 16
in
Psychology
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1
answer
42
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What is selective attention in psychology?
asked
Jan 15
in
Psychology
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