Recent activity by MarilynnAnth

1 answer 22 views

What is the relationship between doping concentration and conductivity in a semiconducting material used in electronic devices?

answered 1 day ago in Materials Chemistry

1 answer 18 views

How does the presence of reaction products affect the rate of a chemical reaction? Use a specific example from the field of chemical kinetics to support your answer.

asked 3 days ago in Chemical kinetics

1 answer 17 views

What is the optimum temperature and time required for the Preparation of p-nitroaniline from aniline and nitric acid, and how can the purity of the final product be improved?

asked 3 days ago in Chemical synthesis

1 answer 23 views

What are the optimal conditions (temperature, concentration of reagents, and reaction time) required to prepare p-nitroaniline from aniline and nitric acid, and what is the percentage yield of the reaction under these conditions?

asked 3 days ago in Chemical synthesis

1 answer 24 views

What is the optimized reaction condition, such as temperature, concentration, and catalyst, for producing polyvinyl alcohol with a high molecular weight from vinyl acetate monomer?

asked 3 days ago in Chemical synthesis

1 answer 16 views

How does the intensity of light affect the rate of reaction between hydrogen peroxide and potassium iodide?

asked 4 days ago in Chemical kinetics

1 answer 30 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their function in biological systems? Provide specific examples and discuss the impact of the coordination environment on enzymatic activity, selectivity, and specificity.

asked 6 days ago in Coordination Chemistry

1 answer 27 views

How does the conductivity of a salt solution change with the concentration of the salt?

answered 6 days ago in Inorganic Chemistry

1 answer 21 views

How does the concentration of sulfur dioxide in the atmosphere affect the pH level of rainwater in areas experiencing acid rain, and what are the potential ecological consequences of these changes in pH?

answered 6 days ago in Environmental Chemistry

1 answer 27 views

What is the total surface area of a sample of activated carbon with a mass of 0.5 g, assuming a monolayer adsorption capacity of 80 mg/g and a BET surface area of 900 m²/g?

answered Feb 18 in Surface Chemistry

1 answer 7 views

What is the bond length between the oxygen atom (O) and the hydrogen atom (H) in a water molecule (H2O) assuming that the bond between H and O is covalent? Provide your answer in picometers (pm) and express it to three significant figures.

asked Feb 18 in Chemical bonding

1 answer 31 views

What is the structural difference between ethanol and propanol as determined by nuclear magnetic resonance (NMR) spectroscopy?

asked Feb 14 in Physical Chemistry

1 answer 35 views

How does the ligand field splitting affect the magnetic properties of a transition metal complex and what are the factors that influence it?

asked Feb 13 in Quantum Chemistry

1 answer 38 views

What is the effect of incorporating different types of nanoparticles, such as silica or carbon nanotubes, on the mechanical and thermal properties of polymer nanocomposites?

asked Feb 13 in Polymer Chemistry

1 answer 40 views

How does the binding of specific transcription factors to DNA sequences result in the regulation of gene expression in eukaryotic cells?

asked Feb 13 in BioChemistry

1 answer 49 views

How does the surface chemistry of a metal change during the process of corrosion and what can be done to prevent or slow down the corrosion process through passivation?

answered Feb 13 in Surface Chemistry

1 answer 42 views

How can the structure and composition of drug delivery systems be optimized to improve efficacy and decrease potential side effects?

answered Feb 10 in Medicinal Chemistry

1 answer 49 views

How can the production process of surfactants be optimized to minimize waste and increase efficiency, while ensuring that the final product meets industry standards and is environmentally sustainable?

answered Feb 10 in Chemical engineering

1 answer 37 views

How can the molecular structure of a drug be optimized using computational chemistry and molecular modeling techniques to increase its effectiveness in treating a particular disease?

answered Feb 10 in Physical Chemistry

1 answer 22 views

How can the environmental impact of an industrial project be quantitatively measured and analyzed by using chemical indicators?

asked Feb 7 in Environmental Chemistry

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