Recent activity by HarryHodgkin

1 answer 18 views

How does the size and shape of gold nanoparticles affect their catalytic activity in a specific reaction, such as the reduction of 4-nitrophenol?

answered 1 day ago in Materials Chemistry

1 answer 21 views

What is the effect of increasing the pH on the equilibrium position of the reaction between acetic acid and sodium acetate? Provide a mathematical explanation to justify your answer.

asked 3 days ago in Chemical equilibrium

1 answer 30 views

How does the photochemical behavior of enantiomers differ in the presence of circularly polarized light? Provide a detailed explanation with relevant examples.

asked 3 days ago in PhotoChemistry

1 answer 22 views

How does the crystallization rate affect the morphology of polymers, and how can we control it for the desired outcome?

asked 6 days ago in Polymer Chemistry

1 answer 24 views

What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) in water at different temperatures, and how does it vary with the change in pH of the solution?

answered 6 days ago in Surface Chemistry

1 answer 27 views

How do the coordination chemistry principles of chelation therapy explain the formation and stability of metal ion complexes used for the treatment of diseases such as iron overload and heavy metal poisoning?

asked 6 days ago in Coordination Chemistry

1 answer 5 views

How does the chemical structure of hormones affect their ability to bind to specific receptors and initiate signaling pathways in target cells?

answered Feb 18 in BioChemistry

1 answer 44 views

How does the supramolecular assembly affect the photochemical properties of a dye molecule? Provide experimental evidence and theoretical explanations for your answer.

answered Feb 17 in PhotoChemistry

1 answer 32 views

How can we optimize the drug delivery system for a protein-based drug to improve its efficacy and minimize adverse effects on the human body?

answered Feb 14 in Medicinal Chemistry

1 answer 33 views

What is the oxidation state of nitrogen in ammonium nitrate [NH4NO3]?

asked Feb 13 in Chemical reactions

1 answer 43 views

What is the polarity of the bond between carbon and oxygen in a molecule of carbon dioxide (CO2) and how can it be determined?

answered Feb 13 in Chemical bonding

1 answer 47 views

How can the surface properties of a biomaterial be modified using plasma treatment, and how does this modification affect the material's biocompatibility and cellular response?

asked Feb 11 in Surface Chemistry

1 answer 22 views

How can the magnetic properties of materials be optimized to increase the efficiency of data storage devices, such as hard drives or magnetic tapes?

answered Feb 7 in Materials Chemistry

1 answer 35 views

How can the knowledge of structure-activity relationship be utilized in the design and development of new drugs to treat cardiovascular diseases, such as heart failure, hypertension and angina pectoris?

answered Feb 7 in Medicinal Chemistry

1 answer 26 views

How can the efficiency of solar cells be improved by synthesizing and characterizing new materials with desired properties such as high light absorption, charge separation, and transport?

answered Feb 7 in Materials Chemistry

1 answer 21 views

How can complex chemical concepts be simplified and better understood for students struggling to grasp them?

answered Feb 6 in Chemical education

1 answer 30 views

How can chemistry teachers provide better support and accommodations for students with learning disabilities to promote their success and engagement in the subject?

answered Feb 5 in Chemical education

1 answer 47 views

Here's a precise problem for a chemistry student to solve in Organic Synthesis and Retrosynthesis:Develop a retrosynthesis approach to synthesize 2-methyl-1-phenylpropan-1-ol, starting from benzene, propene, and any other necessary reagents, explaining each step in the backward reaction sequence.

answered Feb 4 in Organic Chemistry

1 answer 54 views

Calculate the overpotential of an electrochemical cell where Zinc metal is used as an anode and Copper metal as a cathode. The concentration of Zinc ions in the half-cell is 1 M and Copper ions in the half-cell is 0.1 M. The temperature of the system is 25°C. (Given: Standard Reduction Potentials - Zn²⁺ + 2e⁻ → Zn(s) = -0.76 V and Cu²⁺ + 2e⁻ → Cu(s) = +0.34 V)

asked Feb 3 in ElectroChemistry

1 answer 83 views

What is the effect of adding a methyl group to a benzene ring on its electronic transport properties, as predicted by density functional theory calculations, and how does this relate to its potential use in organic electronic devices?

answered Jan 30 in Computational Chemistry

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