Recent activity by TawannaPigot

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How does the pore geometry of zeolite structures affect the diffusion rates of different molecules (such as water, methane, and oxygen) through the material, as predicted by computational modeling?

answered 3 days ago in Computational Chemistry

1 answer 19 views

What is the most efficient way of preparing 2,4,6-trinitrotoluene (TNT) from toluene and nitric acid while minimizing the production of unwanted byproducts?

answered 4 days ago in Chemical synthesis

1 answer 19 views

How does the lysosomal degradation pathway dispose of damaged or misfolded proteins in the cell, and what impact do variations in this pathway have on protein turnover rates and cellular health?

asked 5 days ago in BioChemistry

1 answer 23 views

How do the intrinsic electronic and optical properties of a conjugated polymer depend on its molecular structure and the nature of substituents attached to its backbone?

answered 5 days ago in Quantum Chemistry

1 answer 31 views

How does the electronic band structure of a material change as the lattice parameters are varied using density functional theory?

asked 6 days ago in Computational Chemistry

1 answer 19 views

How does the cooling rate affect the crystal size in the polymerization process of polyethylene?

answered 6 days ago in Polymer Chemistry

1 answer 20 views

How does the chemical composition and physical properties of crude oil affect its behavior and impacts on the environment during an oil spill, and what are the possible remediation strategies to mitigate the damage caused by such spills?

asked Feb 18 in Environmental Chemistry

1 answer 31 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?

answered Feb 18 in Computational Chemistry

1 answer 16 views

What is the polarity of the bond between hydrogen and oxygen in a water molecule?

asked Feb 18 in Chemical bonding

1 answer 32 views

How do nitrogen and phosphorus pollution affect the biochemical oxygen demand (BOD) levels in water bodies and what are the chemical processes involved in their removal from polluted water?

answered Feb 14 in Environmental Chemistry

1 answer 32 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 31 views

What is the amount of heat released when 5 grams of NaCl is crystallized from its aqueous solution at 25°C, and the final temperature of the solution is -5°C? (Given: Heat of crystallization of NaCl = -3.92 kJ/mol)

asked Feb 13 in ThermoChemistry

1 answer 51 views

How do the photochemical properties of chiral molecules affect their behavior in asymmetric photochemical reactions and what are the implications for drug design and synthesis?

answered Feb 12 in PhotoChemistry

1 answer 40 views

How can the properties of polymer-based biomaterials be optimized to promote the growth and regeneration of different types of tissues in tissue engineering applications?

answered Feb 10 in Polymer Chemistry

1 answer 44 views

How can the production process of a specific food additive be optimized in terms of yield and purity, while minimizing environmental impact and production costs using chemical engineering principles?

asked Feb 10 in Chemical engineering

1 answer 43 views

How can chemistry teachers in high schools provide better support for students with learning disabilities, specifically in the areas of lesson planning, hands-on activities, and assessments, in order to ensure that these students can get the most out of their chemistry education and succeed in the subject?

answered Feb 5 in Chemical education

1 answer 32 views

How can chemistry educators improve the emphasis on practical applications of chemistry in the classroom to better prepare students for future careers in the field?

asked Feb 4 in Chemical education

1 answer 54 views

Calculate the volume of 0.2 M hydrochloric acid required to completely neutralize 25 mL of 0.1 M sodium hydroxide solution.

answered Feb 3 in Chemical reactions

1 answer 47 views

Calculate the standard enthalpy change for the reaction between 2.00 moles of liquid ethanol (C2H5OH) and 3.50 moles of gaseous oxygen (O2) to form carbon dioxide (CO2) gas and liquid water (H2O) at 25°C and standard pressure. The balanced chemical equation for the reaction is C2H5OH + 3O2 → 2CO2 + 3H2O. (The molar enthalpies of formation for C2H5OH, CO2, and H2O are -277.6 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol, respectively.)

answered Feb 3 in Chemical thermodynamics

1 answer 41 views

Calculate the standard enthalpy change for the fusion of 1 mole of solid water (ice) at 0°C to liquid water at 0°C. Given the enthalpy of fusion of solid water as 6.01 kJ/mol and the specific heat capacity of water as 4.18 J/g°C.

asked Feb 3 in Chemical thermodynamics

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