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User EdgardoHinch
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Recent activity by EdgardoHinch
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What is the relationship between the length of the conjugated polymer chain and its energy gap? How does the energy gap affect the electronic and optical properties of the polymer? Provide a detailed explanation using quantum chemistry calculations.
answered
1 day
ago
in
Quantum Chemistry
1
answer
20
views
What is the effect of the intensity of light on the rate of the reaction between potassium iodide and hydrogen peroxide, and how does this compare with the effect of temperature on the reaction rate under the same conditions?
asked
3 days
ago
in
Chemical kinetics
1
answer
11
views
What is the effect of increasing the pH from 3 to 5 on the equilibrium position of the reaction between acetic acid (CH3COOH) and sodium acetate (CH3COONa)?
asked
3 days
ago
in
Chemical equilibrium
1
answer
30
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How does the polarity of a solvent affect the rate of a photochemical reaction in terms of the excited state lifetime of the reactants?
answered
3 days
ago
in
PhotoChemistry
1
answer
28
views
How does the intensity of light affect the rate of photochemical reactions in a specific organic compound?
answered
5 days
ago
in
PhotoChemistry
1
answer
20
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What is the effect of temperature on the rate of reaction between magnesium and hydrochloric acid?
asked
5 days
ago
in
Chemical kinetics
1
answer
22
views
What is the bond order and bond length of the N-O bond in nitric oxide (NO)?
asked
Feb 18
in
Inorganic Chemistry
1
answer
22
views
How does surface modification of nanoparticles affect their stability and reactivity in different chemical environments?
answered
Feb 17
in
Surface Chemistry
1
answer
27
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What is the role of pyridoxal phosphate (PLP) in the transamination of amino acids during their metabolism and biosynthesis?
answered
Feb 14
in
BioChemistry
1
answer
27
views
How do the photochromic properties of a material change under different light intensities, and what is the mechanism behind these changes?
asked
Feb 14
in
PhotoChemistry
1
answer
36
views
How does the activity of lipoprotein lipase (LPL) vary in different tissues and how does it affect lipid metabolism and transport in the body?
answered
Feb 13
in
BioChemistry
1
answer
32
views
How do the intermolecular forces of different substances affect their boiling points, and how can we accurately predict the boiling point of a given substance based on its intermolecular forces?
asked
Feb 13
in
Chemical bonding
1
answer
33
views
What is the coordination number and oxidation state of the central metal ion in the complex [Fe(H2O)6]Cl3?
asked
Feb 13
in
Coordination Chemistry
1
answer
10
views
How can the impact of radioactive waste disposal on the environment be minimized through various chemical processes and technologies?
asked
Feb 7
in
Environmental Chemistry
1
answer
33
views
How can sustainable agriculture practices reduce the negative impact of synthetic fertilizers and pesticides on soil and water quality in agricultural ecosystems?
asked
Feb 6
in
Environmental Chemistry
1
answer
33
views
How can Dynamic Mechanical Analysis (DMA) be used to determine the glass transition temperature of a polymer? Provide a step-by-step explanation of the DMA technique and its application to polymer characterization.
asked
Feb 5
in
Polymer Chemistry
1
answer
50
views
Calculate the standard enthalpy change (in kJ/mol) for the neutralization reaction of hydrochloric acid (HCl) and sodium hydroxide (NaOH) using the following information: HCl (aq) + NaOH (aq) → NaCl (aq) + H2O(l)ΔHf° (kJ/mol): HCl (aq) = -167.2 NaOH (aq) = -469.2 NaCl (aq) = -407.3 H2O(l) = -285.8
asked
Feb 3
in
Chemical thermodynamics
1
answer
75
views
What type of intermolecular forces exist between hydrogen fluoride (HF) molecules at room temperature and why?
asked
Jan 31
in
Chemical bonding
1
answer
74
views
What is the structure of Compound X? Use nuclear magnetic resonance spectroscopy (NMR) to determine the functional groups present and their respective positions in the molecule.
asked
Jan 31
in
Analytical Chemistry
1
answer
66
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What specific regulations have been implemented in different countries to protect the environment, and how effective have they been in reducing environmental damage and pollution?
asked
Jan 31
in
Environmental Chemistry
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