Recent activity by FilomenaWago

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How do the photochemical properties of different photovoltaic materials affect their efficiency in converting solar energy into electrical energy?

asked 3 days ago in PhotoChemistry

1 answer 24 views

What is the mechanism behind the photochemical degradation of the pesticide chlorpyrifos in water solution? How does the process change with different wavelengths of light?

answered 3 days ago in Physical Chemistry

1 answer 16 views

What is the most reliable and efficient method to synthesize and characterize the metal coordination compounds of a specific ligand using various spectroscopic techniques and analytical methods?

answered 3 days ago in Coordination Chemistry

1 answer 25 views

What is the molecular shape of the methane molecule (CH4) according to the valence shell electron pair repulsion (VSEPR) theory, and what is the explanation for it from the quantum mechanics point of view?

answered 4 days ago in Physical Chemistry

1 answer 25 views

How does the electronic band structure of a material change with varying external pressure, as predicted by density functional theory calculations?

asked 5 days ago in Computational Chemistry

1 answer 28 views

How does the catalytic activity of enzymes change when the temperature and pH of the reaction environment are altered, as determined through computational modeling and simulation?

asked Feb 18 in Computational Chemistry

1 answer 28 views

What is the balanced chemical equation for the double replacement reaction between sodium chloride and silver nitrate, and what are the spectator ions in the reaction?

answered Feb 17 in Chemical reactions

1 answer 22 views

How do surfactants in laundry detergents and cleaning agents affect the surface tension and interfacial properties of water, and how does understanding these mechanisms help in the cleaning process?

asked Feb 17 in Surface Chemistry

1 answer 44 views

What are the most effective photochemical degradation methods to remove pollutants, such as pesticides and industrial chemicals, from water and air in different environmental conditions?

answered Feb 14 in PhotoChemistry

1 answer 27 views

How do persistent organic pollutants (POPs) affect aquatic ecosystems, and what measures can be taken to reduce their impact on these environments?

asked Feb 14 in Environmental Chemistry

1 answer 44 views

Identify the primary biomolecules present in a sample of DNA extracted from a eukaryotic cell and describe their chemical structures.

asked Feb 13 in Organic Chemistry

1 answer 34 views

How can we design a sustainable and efficient system for the recovery of valuable metals such as gold, silver and copper from electronic waste using chemical engineering principles and techniques?

answered Feb 12 in Chemical engineering

1 answer 7 views

How can we design a drug to specifically target cancer cells that overexpress the HER2 receptor?

asked Feb 12 in Medicinal Chemistry

1 answer 36 views

How can the swelling capacity of a polyacrylate-based superabsorbent material be optimized?

asked Feb 11 in Polymer Chemistry

1 answer 32 views

How can the pharmacology of natural products be investigated for their potential medicinal use? Specifically, what analytical techniques can be employed to identify the active compounds in natural products, determine their mechanism of action, and evaluate their efficacy and safety?

answered Feb 10 in Medicinal Chemistry

1 answer 33 views

How can the efficiency of polymer-based photovoltaic materials be improved through the modification of their chemical structure?

answered Feb 7 in Polymer Chemistry

1 answer 34 views

How can computational methods be used to predict the catalytic activity and selectivity of a particular catalyst for a given chemical reaction in quantum chemistry?

answered Feb 5 in Quantum Chemistry

1 answer 33 views

How can chemistry students with limited access to laboratory equipment and facilities still conduct meaningful experiments to supplement their learning?

asked Feb 5 in Chemical education

1 answer 50 views

Here's a question for a chemistry student to solve:How does the entropy of a system change during a non-equilibrium process, and what factors determine the direction of the process? Use specific examples from real-world systems to illustrate your answer.

asked Feb 4 in Physical Chemistry

1 answer 60 views

Determine the standard enthalpy change for the reaction between calcium oxide and hydrochloric acid, given the following information:CaO(s) + 2HCl(aq) → CaCl2(aq) + H2O(l)∆Hf° CaCl2(aq) = -795.7 kJ/mol∆Hf° H2O(l) = -285.8 kJ/mol∆Hc° = -1922.6 kJ/mol

asked Feb 4 in Chemical thermodynamics

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