Recent activity by StantonPearl

1 answer 47 views

What is the effect of nanoparticle size and shape on its photochemical properties? Please provide examples and discuss the underlying mechanisms behind these observations.

asked Feb 24 in PhotoChemistry

1 answer 35 views

How do the photochemical properties of photosensitive materials used in photography affect the quality and durability of the final photographic image?

answered Feb 22 in PhotoChemistry

1 answer 30 views

How do different simulation parameters (e.g. temperature, pressure, chain length) affect the behavior of polymer systems when using the Monte Carlo simulation method?

asked Feb 21 in Computational Chemistry

1 answer 32 views

How does the addition of dopant atoms affect the electronic properties of graphene? And how can these properties be harnessed for the development of more efficient electronic devices?

asked Feb 17 in Materials Chemistry

1 answer 36 views

How does the addition of a polymer plasticizer affect the compatibility of a blend of polystyrene and polyvinyl chloride?

asked Feb 17 in Polymer Chemistry

1 answer 27 views

How does the addition of a catalyst affect the profitability of the reaction between hydrogen peroxide and potassium iodide?

answered Feb 17 in Chemical kinetics

1 answer 40 views

What is the step-by-step procedure for synthesizing 2,4-dinitrobenzoic acid from benzoic acid and nitric acid, and what are the appropriate safety precautions that should be taken during the synthesis process?

asked Feb 17 in Chemical synthesis

1 answer 36 views

What specific genetic variations influence the efficacy and toxicity of anti-cancer drug cisplatin, and how can this information be used to optimize treatment for individual patients?

answered Feb 14 in Medicinal Chemistry

1 answer 66 views

What is the effect of different dopants on the electrical conductivity and mechanical properties of conductive polymers used in flexible electronics?

asked Feb 12 in Materials Chemistry

1 answer 37 views

How can we design drugs to effectively target and treat gram-negative bacteria, such as E. coli, while minimizing harm to human cells?

answered Feb 12 in Medicinal Chemistry

1 answer 73 views

How can the process for the production of industrial gases be optimized to minimize energy consumption while maximizing yield and purity?

asked Feb 10 in Chemical engineering

1 answer 74 views

How can the principles of quantum information processing be applied in the development of more efficient algorithms for simulating chemical systems?

asked Feb 10 in Quantum Chemistry

1 answer 36 views

How can the pH levels of lakes and rivers impacted by acid rain be effectively neutralized using chemical methods?

answered Feb 10 in Environmental Chemistry

1 answer 39 views

How can the design and composition of polymer-based biomaterials be optimized for promoting tissue regeneration and reducing inflammation in tissue engineering applications?

answered Feb 6 in Polymer Chemistry

1 answer 47 views

How can technology be effectively integrated into the teaching and learning of chemical education, and what strategies can be used to overcome the difficulties faced in incorporating technology into chemistry education?

answered Feb 6 in Chemical education

1 answer 65 views

Calculate the standard enthalpy change for the following reaction:2Fe(s) + 3/2O2(g) → Fe2O3(s)Given that the standard enthalpy of formation of Fe2O3(s) is -824 kJ/mol and the standard enthalpy of formation of Fe(s) and O2(g) are 0 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 34 views

How does air pollution in urban areas vary by season, and what are the key pollutants responsible for adverse health impacts on residents?

asked Jan 31 in Environmental Chemistry

1 answer 71 views

Calculate the enthalpy change of combustion for ethane (C2H6) given that the standard enthalpy of formation for ethane is -84.68 kJ/mol, the standard enthalpy of formation for CO2 is -393.5 kJ/mol, and the standard enthalpy of formation for H2O is -241.8 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 68 views

Calculate the enthalpy change for the adsorption of nitrogen gas on the surface of activated charcoal, given that the adsorption pressure is 1 atm at a temperature of 298 K. The quantity of nitrogen gas adsorbed is 0.01 moles per gram of charcoal, and the heat of combustion of the same amount of charcoal is -35.4 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 35 views

What is the Whorfian hypothesis?

answered Jan 20 in Psychology

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