Recent activity by ColumbusU230

1 answer 29 views

What is the relationship between the size and shape of a quantum dot or quantum well and its electronic and optical properties, and how can these properties be calculated using quantum chemistry methods?

asked Feb 24 in Quantum Chemistry

1 answer 29 views

What is the mechanism of the ring closure reaction of furan and pyrrole, and how does the basicity of nitrogen in pyrrole affect its reactivity compared to furan?

asked Feb 24 in Organic Chemistry

1 answer 37 views

How does the substitution of different functional groups affect the reactivity of aromatic compounds towards electrophilic substitution reactions? Provide a specific example and outline the mechanism involved.

asked Feb 24 in Organic Chemistry

1 answer 30 views

How does the rate of reaction between sodium thiosulfate and hydrochloric acid change when the solvent is changed from water to an acetone-water mixture?

answered Feb 22 in Chemical kinetics

1 answer 34 views

What is the oxidation state of iron in FeSO4?

answered Feb 22 in Chemical reactions

1 answer 34 views

How does the molecular weight of a polymer affect its physical properties, such as tensile strength and elongation?

answered Feb 21 in Physical Chemistry

1 answer 36 views

How does the folding process of a protein affect its final structure and function?

answered Feb 20 in BioChemistry

1 answer 29 views

What is the effect of varying the salt concentration on the stability of DNA-protein complexes in molecular dynamics simulations?

asked Feb 20 in Computational Chemistry

1 answer 32 views

What is the dipole moment of the water molecule, and how does it change when a fluoride ion replaces one of the hydrogen atoms? Use ab initio calculations to determine the dipole moments of both molecules and compare the results.

answered Feb 19 in Computational Chemistry

1 answer 33 views

How does the critical temperature of superconducting materials vary with changes in their chemical composition and crystal structure?

answered Feb 19 in Materials Chemistry

1 answer 32 views

What is the balanced chemical equation for the reaction between potassium iodide and lead (II) nitrate to form solid lead iodide and aqueous potassium nitrate?

answered Feb 17 in Chemical reactions

1 answer 37 views

What are the effects of particle size and shape on the catalytic activity of nanomaterials, and how can they be manipulated to optimize their performance in catalysis?

asked Feb 14 in Materials Chemistry

1 answer 38 views

How do mutations in amino acid sequences of proteins affect their folding and function? Provide examples and explain how this information can be used in the development of targeted drug therapies.

asked Feb 13 in BioChemistry

1 answer 53 views

How can we improve the compatibility between two different polymers in a blend to create a stronger and more durable material?

asked Feb 13 in Polymer Chemistry

1 answer 63 views

How can the student optimize the production process of fertilizer to minimize the use of resources (energy, raw materials, time) while ensuring maximum yield and quality of the final product?

answered Feb 11 in Chemical engineering

1 answer 60 views

How can the sensitivity and selectivity of polymer-based sensors for detecting toxic gases be improved using functionalized polymers?

answered Feb 10 in Polymer Chemistry

1 answer 28 views

How can the process of drug design and development be optimized to create more effective treatments for inflammatory diseases?

answered Feb 10 in Medicinal Chemistry

1 answer 43 views

How can the physiochemical properties of polymers be optimized to design drug delivery systems that release the drug at a controlled and sustained rate?

asked Feb 10 in Polymer Chemistry

1 answer 39 views

How can the mechanical and thermal properties of polymer-based composites be optimized for use in aerospace applications?

asked Feb 7 in Polymer Chemistry

1 answer 39 views

How can the mechanical and electrical properties of polymer-based electronic materials be optimized for use in electronic devices?

asked Feb 7 in Polymer Chemistry

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