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1
answer
21
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What factors determine the selectivity of a chemical reaction and how can quantum chemistry be used to predict it?
asked
3 days
ago
in
Quantum Chemistry
0
votes
1
answer
21
views
What is the relative acidity of the following molecules: acetic acid (CH3COOH), ethanol (CH3CH2OH), and water (H2O)? Provide an explanation for your answer based on the properties of each molecule.
asked
3 days
ago
in
Chemical bonding
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votes
1
answer
22
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What is the effect of the particle size of activated carbon on the adsorption capacity for a specific pollutant?
asked
5 days
ago
in
Surface Chemistry
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votes
1
answer
21
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How does the intensity of light affect the rate of a reaction between hydrogen peroxide and iodide ions under different wavelengths of light?
asked
Feb 20
in
Chemical kinetics
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1
answer
25
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What is the bond length between two hydrogen atoms in a hydrogen molecule (H2) if the distance between the nuclei of the two atoms is 0.074 nm?
asked
Feb 18
in
Chemical bonding
0
votes
1
answer
31
views
How does the amino acid composition affect the folding pathway of a specific protein molecule in Molecular Dynamics Simulations?
asked
Feb 17
in
Computational Chemistry
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1
answer
34
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How does pH variation affect the colloidal stability of a sol?
asked
Feb 14
in
Surface Chemistry
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1
answer
35
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What is the effect on the equilibrium position of the following reaction: 2NO2(g) ⇌ N2O4(g) If we add more N2O4 to the reaction chamber?
asked
Feb 13
in
Chemical equilibrium
0
votes
1
answer
47
views
What electronic transport properties can be predicted accurately through the use of Density Functional Theory calculations in organic photovoltaics, and how do these properties affect the overall efficiency of these devices?
asked
Feb 12
in
Computational Chemistry
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votes
1
answer
42
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Calculate the standard enthalpy change for the reaction that occurs when 50 grams of ice at -10°C is heated to water at 25°C. The molar enthalpy of fusion of ice is 6.01 kJ/mol, and the specific heat capacity of water and ice are 4.184 J/g°C and 2.09 J/g°C, respectively. (Assume that the entire sample of ice is converted to water and that no heat is lost to the surroundings.)
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
74
views
What strategies can be used to help students better understand the periodic table and the properties of chemical elements?
asked
Jan 30
in
Chemical education
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votes
1
answer
80
views
How can X-ray fluorescence spectroscopy be used to identify and quantify the presence of specific elements in a sample?
asked
Jan 30
in
Analytical Chemistry
+1
vote
1
answer
56
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Calculate the molar mass of ammonium sulfate ((NH4)2SO4), given that the atomic masses of nitrogen, hydrogen, sulfur, and oxygen are 14.01 g/mol, 1.01 g/mol, 32.06 g/mol, and 16.00 g/mol, respectively.
asked
Jan 23
in
Inorganic Chemistry
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1
answer
60
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A student performed an experiment in which 2.1 moles of nitrogen and 0.8 moles of hydrogen react to form ammonia gas. If the equilibrium constant for the reaction is 3.5 x 10^-4 at a certain temperature, what is the equilibrium concentration of ammonia?
asked
Jan 22
in
Chemical reactions
0
votes
1
answer
27
views
What is the theory that suggests that behaviour evolves due to environmental pressures?
asked
Jan 20
in
Psychology
0
votes
1
answer
49
views
What is the theory behind exposure therapy for anxiety?
asked
Jan 20
in
Psychology
0
votes
1
answer
12
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What are some of the negative consequences of conformity within groups?
asked
Jan 17
in
Psychology
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1
answer
60
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According to the Cognitive Dissonance Theory, what happens when people hold inconsistent beliefs?
asked
Jan 17
in
Psychology
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1
answer
32
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How can the evolutionary theory of development be evaluated?
asked
Jan 16
in
Psychology
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votes
1
answer
12
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How can the social exchange theory be applied to romantic relationships?
asked
Jan 16
in
Psychology
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