Questions by FilomenaWago

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1 answer 24 views

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

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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

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1 answer 30 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

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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

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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

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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

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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

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1 answer 36 views

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

asked Feb 11 in Polymer Chemistry

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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

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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

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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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1 answer 52 views

Calculate the standard enthalpy change (ΔH°) for the following reaction involving the coordination compound [Fe(H2O)6]2+:[Fe(H2O)6]2+(aq) + 2Cl-(aq) → [FeCl2(H2O)4](aq) + 2H2O(l) Given: ΔH°f [FeCl2(H2O)4](aq) = -334 kJ/mol ΔH°f [Fe(H2O)6]2+(aq) = -393 kJ/mol ΔH°f H2O(l) = -286 kJ/mol Note: The superscript ° denotes standard conditions (i.e. 1 atm and 25°C) and the superscript f denotes standard enthalpy of formation.

asked Feb 3 in Chemical thermodynamics

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1 answer 79 views

How can a lack of diversity in the chemistry field affect the development of innovative ideas and collaborations within the scientific community?

asked Jan 30 in Chemical education

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1 answer 64 views

How can the concentration of an unknown substance in a given sample be determined using polarography and what factors affect the accuracy of the method?

asked Jan 29 in Analytical Chemistry

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1 answer 54 views

Calculate the bond order of O2, O2+, O2- and O22-.

asked Jan 23 in Chemical bonding

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1 answer 56 views

A zinc electrode is immersed in a 1.0 M ZnSO4 solution and connected to a platinum electrode that is immersed in a 1.0 M CuSO4 solution. If the measured potential difference of the cell is 1.10 V at 25 °C, what is the polarization of the cell?

asked Jan 22 in ElectroChemistry

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1 answer 41 views

Why is the Milgram experiment controversial?

asked Jan 20 in Psychology

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1 answer 34 views

According to Alfred Adler's individual psychology, what motivates human behaviour?

asked Jan 20 in Psychology

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1 answer 35 views

How can scarcity influence persuasion?

asked Jan 20 in Psychology

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1 answer 29 views

When do phobias become problematic?

asked Jan 20 in Psychology

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