Recent activity by EdwardCecili

1 answer 27 views

How does the size and shape of a nanoparticle affect its behavior in a molecular dynamics simulation? Specifically, how does the radius and aspect ratio of a gold nanoparticle impact its surface area and surface energy?

answered Feb 24 in Computational Chemistry

1 answer 37 views

What is the optimal temperature and pressure for the production of cinnamon flavor using a batch reactor design, and how can the reaction be scaled up for commercial production while maintaining quality and yield?

asked Feb 22 in Chemical engineering

1 answer 31 views

How do the photochemical properties (i.e. absorption spectra, wavelength of maximum absorption, and photostability) of metal complexes vary by changing the coordination number and geometry around the metal center?

answered Feb 22 in PhotoChemistry

1 answer 37 views

What is the optimal concentration of nitric acid and sulfuric acid in the preparation of 2,4,6-trinitrotoluene from toluene to achieve the highest yield and purity of the final product?

asked Feb 21 in Chemical synthesis

1 answer 30 views

What is the mechanism of protein binding to DNA in regulating gene expression?

asked Feb 20 in BioChemistry

1 answer 29 views

Identify the type of inorganic compound formed between Nitrogen and Oxygen in nitrous oxide (N2O)? Is it ionic, covalent or metallic?

asked Feb 20 in Inorganic Chemistry

1 answer 29 views

What is the effect of the number of layers of graphene on its electrical conductivity and how does it affect its potential use in electronic devices?

answered Feb 20 in Materials Chemistry

1 answer 36 views

How does the coordination environment of the metal in metalloenzymes and metalloproteins affect their activity and specificity for substrate binding? Provide specific examples from the literature to support your answer.

asked Feb 19 in Coordination Chemistry

1 answer 24 views

How does the coordination environment of a transition metal ion affect its reactivity towards ligands? Provide examples to support your answer.

answered Feb 19 in Coordination Chemistry

1 answer 30 views

Identify the type of inorganic compound present in sodium chloride (NaCl) and methane (CH4). Is it ionic, covalent, or metallic? Provide a detailed explanation for your choice.

answered Feb 14 in Inorganic Chemistry

1 answer 33 views

How can we predict the selectivity of a chemical reaction based on the electronic structure of reactants?

asked Feb 14 in Quantum Chemistry

1 answer 32 views

How does the enzyme phosphofructokinase regulate the rates of glycolysis and gluconeogenesis in the liver cells?

answered Feb 14 in BioChemistry

1 answer 60 views

What is the net ATP produced by the glycolytic pathway in the absence of oxygen, and what are the differences between the regulation of glycolysis and gluconeogenesis?

asked Feb 13 in BioChemistry

1 answer 56 views

How can we improve the efficiency of solar cells by synthesizing and characterizing new materials with better photovoltaic properties?

answered Feb 13 in Materials Chemistry

1 answer 80 views

How can the rate of protein degradation and turnover be measured and monitored using biochemical assays and techniques in a laboratory setting?

answered Feb 10 in BioChemistry

1 answer 50 views

How can magnetic nanoparticles be synthesized and characterized for efficient drug delivery?

asked Feb 5 in Materials Chemistry

1 answer 44 views

How can chemistry educators emphasize the importance of safety protocols in chemistry labs for students to prevent accidents and injuries?

answered Feb 4 in Chemical education

1 answer 89 views

Determine the entropy change for the combustion of methane gas (CH4) at constant pressure and 298 K. Given the standard molar entropy values are: S°(CH4) = 186 J/mol.K, S°(O2) = 205 J/mol.K, S°(CO2) = 214 J/mol.K and S°(H2O) = 188 J/mol.K.

answered Feb 4 in Chemical thermodynamics

1 answer 79 views

Calculate the standard enthalpy and entropy change for the reaction, given the following information:2 H2(g) + O2(g) → 2 H2O(g)∆H°f [H2O(g)] = -241.8 kJ/mol∆H°f [H2(g)] = 0 kJ/mol∆H°f [O2(g)] = 0 kJ/mol∆S° [H2O(g)] = 188.8 J/Kmol∆S° [H2(g)] = 130.7 J/Kmol∆S° [O2(g)] = 205.2 J/KmolAssuming that all heat capacities are independent of temperature, calculate ∆S°rxn and ∆H°rxn for this reaction.

asked Feb 3 in Inorganic Chemistry

1 answer 98 views

How do bioluminescent organisms such as fireflies and jellyfish use photochemistry to produce light? What are the specific photochemical properties and reactions that occur within these organisms' cells to generate bioluminescence? How can this knowledge of photochemistry in bioluminescent organisms be applied in the development of new bioluminescent materials or technologies?

asked Jan 31 in PhotoChemistry

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