Recent activity by Lavonda96B02

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What is the relationship between the size and shape of nanoparticles and their photochemical properties? Specifically, how does the absorption and emission spectra of gold nanoparticles change as their size and shape are varied?

answered Feb 24 in PhotoChemistry

1 answer 77 views

How does the shape and size of nanomaterials affect their catalytic activity in the oxidation of carbon monoxide?

asked Feb 24 in Materials Chemistry

1 answer 83 views

How does the rate of the chemical reaction between hydrochloric acid and sodium thiosulphate change with temperature, and what specific temperature range yields the fastest reaction rate?

answered Feb 22 in Chemical kinetics

1 answer 79 views

What is the balanced chemical equation for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas, and what are the stoichiometric ratios of each reactant in the reaction?

asked Feb 22 in Chemical synthesis

1 answer 73 views

How does the polarity of the solvent affect the rate of a photochemical reaction between a specific chromophore and the solvent?

asked Feb 22 in PhotoChemistry

1 answer 88 views

What is the maximum amount of work that can be obtained from a chemical reaction at constant temperature and pressure, assuming perfect reversibility and no external work?

answered Feb 20 in Physical Chemistry

1 answer 85 views

What is the formal charge of the nitrogen atom in the ammonium ion (NH4+)?

answered Feb 20 in Inorganic Chemistry

1 answer 86 views

What is the balanced chemical equation for the precipitation reaction between silver nitrate solution and sodium chloride solution, and how many moles of silver chloride can be produced from 2.5 grams of AgNO3 and an excess of NaCl?

asked Feb 17 in Chemical reactions

1 answer 78 views

What is the balanced chemical equation for the double replacement reaction between sodium chloride and silver nitrate to form silver chloride and sodium nitrate?

answered Feb 17 in Chemical reactions

1 answer 91 views

How does the addition of natural additives (such as cornstarch or potato starch) affect the mechanical and barrier properties of polymer-based packaging materials, and what is the environmental impact of using these additives?

answered Feb 17 in Polymer Chemistry

1 answer 101 views

How do the properties of surfactants change with variations in their molecular structure and how can these properties be modified to enhance their efficiency in different applications?

asked Feb 17 in Surface Chemistry

1 answer 73 views

How can we predict the crystal structure of inorganic solids with different compositions and bonding arrangements?

answered Feb 14 in Inorganic Chemistry

1 answer 73 views

How can the yield and purity of fragrance compounds be optimized in the production process, and what factors must be taken into consideration in achieving this goal?

answered Feb 14 in Chemical engineering

1 answer 78 views

How do non-specific DNA-binding proteins help in the initiation of DNA replication and prevent errors during the process?

answered Feb 14 in BioChemistry

1 answer 86 views

What is the effect of metal substitution on the UV-Vis absorption spectra of metalloporphyrins and metallophthalocyanines? Provide a detailed explanation based on the electronic structure of these compounds.

asked Feb 13 in Coordination Chemistry

1 answer 112 views

What is the difference between linkage isomerism and coordination isomerism in coordination compounds? How can we distinguish between these two types of isomers based on their structural and spectroscopic properties?

asked Feb 13 in Coordination Chemistry

1 answer 148 views

What is the hybridization of the central atom in SF4?

answered Feb 13 in Inorganic Chemistry

1 answer 90 views

How can the particle size and surface charge of drug delivery systems be optimized for maximum efficacy in targeted drug delivery to specific tissues or organs in the body?

answered Feb 10 in Medicinal Chemistry

1 answer 85 views

How can the controlled release of a drug from a polymer-based drug delivery system be optimized to ensure maximum therapeutic efficacy and minimal adverse effects?

answered Feb 6 in Polymer Chemistry

1 answer 88 views

How can chemistry educational materials (such as textbooks, lab manuals, and lectures) be made more accessible for students with learning disabilities in order to improve their understanding and retention of chemical concepts?

asked Feb 4 in Chemical education

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