Recent activity by EnriquetaDam

1 answer 27 views

What is the relationship between zeta potential and colloidal stability? How can zeta potential be measured experimentally? What factors affect the zeta potential of a particular colloidal system?

asked Feb 24 in Surface Chemistry

1 answer 28 views

What are the optimum conditions for synthesizing a conductive polymer with high conductivity suitable for use in flexible electronics?

asked Feb 22 in Materials Chemistry

1 answer 32 views

What is the mechanism for a ligand substitution reaction between [Co(H2O)6]2+ and Cl- in aqueous solution?

asked Feb 20 in Coordination Chemistry

1 answer 30 views

Identify the mechanism and the major product formed in the following reaction: CH3CH2Br + OH- → CH3CH2OH + Br- Also, determine whether it undergoes an SN1, SN2, E1, or E2 mechanism and provide a detailed explanation for your choice.

answered Feb 20 in Organic Chemistry

1 answer 59 views

What are the specific photochemical properties of photovoltaic materials that determine their efficiency in converting light into electricity, and how can these properties be optimized through chemical and structural modifications?

answered Feb 20 in PhotoChemistry

1 answer 31 views

What is the coordination chemistry of the metalloenzyme nitrogenase, and how does it enable the conversion of atmospheric nitrogen into ammonia?

answered Feb 19 in Coordination Chemistry

1 answer 34 views

What is the chemical equation for the gas evolution reaction that occurs when magnesium metal reacts with hydrochloric acid and how does this reaction demonstrate the relationship between acid strength and reactivity with metals?

asked Feb 18 in Chemical reactions

1 answer 38 views

How does the carbon footprint of transportation methods (such as cars, planes, and public transportation) impact the environment and what measures can be taken to reduce their carbon emissions?

answered Feb 18 in Environmental Chemistry

1 answer 25 views

What is the bond enthalpy of the carbon-hydrogen bond in methane (CH4) based on experimental data?

answered Feb 18 in Chemical bonding

1 answer 41 views

How does surface modification of nanoparticles affect their stability, reactivity, and interaction with biological systems?

answered Feb 17 in Surface Chemistry

1 answer 34 views

What are the factors that influence the mechanical and thermal properties of ceramics used in high-temperature applications?

answered Feb 14 in Materials Chemistry

1 answer 39 views

What are the differences between the primary, secondary, tertiary, and quaternary structures of nucleic acids and how do these structural differences affect their functions in biological systems?

asked Feb 14 in BioChemistry

1 answer 32 views

How do the properties of lipid bilayers change in response to changes in temperature and composition, as predicted by molecular dynamics simulations?

answered Feb 13 in Computational Chemistry

1 answer 31 views

How can the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer be optimized to achieve a high yield and a high degree of polymerization?

answered Feb 11 in Chemical synthesis

1 answer 13 views

How can the production efficiency of surfactants be improved by designing an optimized system that enhances the mixing, heat transfer, and chemical reactions within the reactor?

answered Feb 10 in Chemical engineering

1 answer 47 views

How can the performance of polymer-based membranes for water treatment be improved by modifying the structure and properties of the polymer?

asked Feb 10 in Polymer Chemistry

1 answer 46 views

How can computational methods in quantum chemistry be used to predict the catalytic activity and selectivity of a particular catalyst for a specific chemical reaction?

answered Feb 5 in Quantum Chemistry

1 answer 44 views

How can quantum chemical calculations help explain the strength and stability of non-covalent interactions between molecules such as hydrogen bonding, van der Waals forces, and π-π stacking in biological systems? Provide specific examples from published literature where these calculations have been used to investigate non-covalent interactions in biomolecules such as proteins, nucleic acids, or carbohydrates.

asked Feb 5 in Computational Chemistry

1 answer 116 views

How do certain amino acid sequences affect the folding mechanism of proteins, as observed through molecular dynamics simulations, and how can this information be used to understand and design more effective protein therapeutics?

answered Jan 31 in Computational Chemistry

1 answer 109 views

Identify the type of bonding that occurs in sodium chloride, graphite, and copper based on their respective properties and explain the reasons behind each type of bonding.

asked Jan 30 in Chemical bonding

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