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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.
asked
1 day
ago
in
Computational Chemistry
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votes
1
answer
18
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How does the presence of heavy metals in water sources affect the survival and growth of fish in aquatic environments and what are the potential risks to human health?
asked
3 days
ago
in
Environmental Chemistry
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votes
1
answer
22
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What is the most efficient method for synthesizing a specific metal-organic framework with desirable properties, using readily available starting materials and conditions that minimize waste production?
asked
4 days
ago
in
Materials Chemistry
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votes
1
answer
19
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What is the bond dissociation energy required to break the C-H bond in methane (CH4)?
asked
Feb 18
in
ThermoChemistry
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1
answer
6
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What are the mechanisms of energy transfer in lanthanide complexes and how can they be used in designing highly efficient luminescent materials?
asked
Feb 13
in
PhotoChemistry
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1
answer
43
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How can the synthesis of biodegradable polymers be optimized to improve their biodegradability while maintaining their mechanical properties for practical applications?
asked
Feb 11
in
Polymer Chemistry
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1
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31
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How can the synthesis and characterization of new materials be optimized to enhance the efficiency and durability of fuel cells?
asked
Feb 11
in
Materials Chemistry
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votes
1
answer
34
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How can one predict the bond strength of a molecule based on its chemical bonding? Provide specific examples and compare the bond strengths of various molecules to illustrate the concept.
asked
Feb 5
in
Chemical bonding
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votes
1
answer
36
views
Calculate the standard free energy change for the reaction of HCl with MnO2 to form MnCl2 and H2O at a temperature of 298 K, given that the standard reduction potentials are E°(MnO2/MnCl2)=-0.13 V and E°(H2O/HCl)=1.23 V.
asked
Feb 3
in
Chemical thermodynamics
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1
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59
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What are the structural differences between carbohydrates and lipids, and how do these differences impact their respective biological functions?
asked
Jan 31
in
Organic Chemistry
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1
answer
78
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What are the mechanisms of bioaccumulation and biomagnification of persistent organic pollutants (POPs) in the aquatic food chain and how do these processes lead to environmental contamination and potential health risks for humans who consume contaminated seafood?
asked
Jan 31
in
Environmental Chemistry
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votes
1
answer
68
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How can an inadequate emphasis on chemical reactions and equations in the classroom affect a student's ability to comprehend more advanced chemistry topics like stoichiometry and thermodynamics?
asked
Jan 31
in
Chemical education
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1
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45
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Calculate the enthalpy of adsorption for a reaction where 2 moles of nitrogen gas (N2) are adsorbed on the surface of a solid at -100°C. Given that the partial pressure of N2 in the gas phase is 0.2 atm and the equilibrium constant for adsorption of N2 at this temperature is 2.5 x 10^3. Assume the adsorption is a reversible process and that the ideal gas law can be used to calculate partial pressures.
asked
Jan 23
in
ThermoChemistry
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1
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57
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A student wants to know how changing the volume affects the position of the equilibrium for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g). If the reaction is initially at equilibrium in a 2 L container at 400 K and then the volume is decreased to 1 L, what will be the new concentrations of each gas at equilibrium? (Assume that the pressure remains constant and that the reaction follows the ideal gas law.)
asked
Jan 22
in
Chemical equilibrium
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votes
1
answer
43
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Why is the humanistic perspective criticised for being too optimistic?
asked
Jan 20
in
Psychology
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1
answer
24
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How might the terminal decline hypothesis be explained?
asked
Jan 20
in
Psychology
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1
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30
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Compare the different parenting styles identified by Diana Baumrind.
asked
Jan 17
in
Psychology
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1
answer
23
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What is the Coolidge Effect?
asked
Jan 15
in
Psychology
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1
answer
29
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When was the Observational Learning Theory proposed?
asked
Jan 15
in
Psychology
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1
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46
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What was the contribution of Abraham Maslow to psychology?
asked
Jan 13
in
Psychology
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