Recent activity by Latonya89F54

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How does the size and shape of microplastics affect their toxicity and accumulation in marine organisms?

answered 22 hours ago in Environmental Chemistry

1 answer 17 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 22 hours ago in Quantum Chemistry

1 answer 20 views

What is the effect of varying concentrations of reactants on the reaction rate and safety of the reaction between sulfuric acid and sodium hydroxide, and how can this information be used to design a safe and efficient reaction process?

asked 3 days ago in Chemical kinetics

1 answer 14 views

What is the predicted bond angle for a water molecule (H2O)? Provide a detailed explanation of the factors that determine the bond angle and how they contribute to the specific angle observed in water.

answered 3 days ago in Chemical bonding

1 answer 15 views

How does the photochemical activity of luminescent materials vary with changes in their composition and structure?

asked 3 days ago in PhotoChemistry

1 answer 16 views

What are the optimal laboratory conditions (temperature, pressure, solvent, reaction time) for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer to obtain the highest yield?

answered 3 days ago in Chemical synthesis

1 answer 3 views

What is the most efficient and economical method for synthesizing polyvinyl alcohol from vinyl acetate monomer, considering the purity, yield, and properties of the resulting polymer?

answered 3 days ago in Chemical synthesis

1 answer 23 views

What is the most effective method to dispose of low-level radioactive waste without causing harm to the environment, and how can we monitor the potential impact of such waste on soil, water, and nearby ecosystems?

answered 3 days ago in Environmental Chemistry

1 answer 30 views

How does the electronic structure of metal ions affect the coordination chemistry of metallofullerenes and metalloclusters? Provide specific examples and experimental evidence supporting your answer.

answered 5 days ago in Coordination Chemistry

1 answer 24 views

What is the electronic structure of a chromium tricarbonyl complex and how does it compare to the electronic structure of a similar iron tricarbonyl complex, as determined by ab initio calculations?

answered 5 days ago in Computational Chemistry

1 answer 24 views

How many ATP molecules are produced per turn of the citric acid cycle and oxidative phosphorylation in the mitochondria of eukaryotic cells?

answered 6 days ago in BioChemistry

1 answer 28 views

How does the addition of a photosensitizer affect the rate of a photochemical reaction in a solution containing a photolabile compound?

answered Feb 17 in Physical Chemistry

1 answer 39 views

Identify the type of bonding present in the solids of sodium chloride, diamond, and copper.

answered Feb 13 in Chemical bonding

1 answer 25 views

What is the bandgap of graphene and how does it affect the optical properties of the material? Provide a detailed analysis and comparison with other 2D materials that have different bandgaps.

asked Feb 13 in Quantum Chemistry

1 answer 43 views

What is the heat of hydration of magnesium sulfate, MgSO4, when 45 grams of the anhydrous salt is dissolved in 250 mL of water? The molar heat of hydration of MgSO4 is -138.5 kJ/mol.

asked Feb 13 in ThermoChemistry

1 answer 43 views

How can the synthesis and characterization of new materials be optimized to effectively remove heavy metal ions from contaminated water sources?

asked Feb 11 in Materials Chemistry

1 answer 38 views

How can the electronic and magnetic properties of metal-organic frameworks be accurately predicted using quantum chemistry calculations, and how do these properties impact the potential applications of these materials in fields such as catalysis and gas storage?

answered Feb 7 in Quantum Chemistry

1 answer 40 views

How can the chemical engineers optimize the reaction conditions and reactor design for the efficient extraction of flavors, while maintaining their chemical stability and sensory properties?

asked Feb 6 in Chemical engineering

1 answer 36 views

How can chemistry students in developing countries overcome the limited availability of textbooks and resources to adequately prepare for their exams and improve their understanding of key concepts in the subject?

asked Feb 5 in Chemical education

1 answer 40 views

How can 1-bromo-2-methylcyclohexane be transformed into 1-methylcyclohexene via an E2 elimination reaction? What are the necessary conditions and reagents needed for this transformation to occur?

answered Feb 4 in Organic Chemistry

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