Recent activity by Calvin40083

1 answer 29 views

What is the relationship between the cross-linking density and the water absorption capacity of polymer-based superabsorbent materials?

asked Feb 24 in Polymer Chemistry

1 answer 38 views

How does the presence of chlorofluorocarbons (CFCs) in the atmosphere contribute to the depletion of the ozone layer, and what are the potential consequences of continued depletion on air quality and human health?

answered Feb 22 in Environmental Chemistry

1 answer 32 views

What is the most efficient and cost-effective chemical treatment system for the removal of heavy metals from industrial wastewater?

answered Feb 21 in Chemical engineering

1 answer 26 views

How does the molecular structure of a dye or pigment affect its photochemical properties, and how can this be utilized in the development of more efficient and stable dyes and pigments for various applications?

asked Feb 21 in PhotoChemistry

1 answer 25 views

What is the molecular geometry of the molecule CH4? How does it differ from the molecular geometry of NH3? Explain the factors that determine the molecular geometries of these two compounds.

asked Feb 21 in Chemical bonding

1 answer 31 views

What is the effect of temperature on the surface tension of a lipid bilayer in a biomembrane? How does this affect membrane integrity and permeability?

answered Feb 20 in Surface Chemistry

1 answer 38 views

What is the complete reaction mechanism for the conversion of methane to methanol using quantum chemical calculations?

asked Feb 19 in Computational Chemistry

1 answer 43 views

How does the choice of polymer material affect the mechanical properties and printability of 3D printed objects?

asked Feb 18 in Polymer Chemistry

1 answer 27 views

What is the balanced chemical equation for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH)?

answered Feb 17 in Chemical reactions

1 answer 30 views

How does the addition of a strong acid or a strong base affect the ionization of a weak acid? Provide an explanation with relevant chemical equations and an example.

answered Feb 17 in Chemical equilibrium

1 answer 40 views

How does the acidity of zeolites affect their catalytic activity in organic reactions? Perform computational studies to investigate the relationship between the acidity of different zeolites and their ability to catalyze specific reactions.

answered Feb 17 in Computational Chemistry

1 answer 37 views

What is the effect of liver metabolism on the drug efficacy of ibuprofen and its active metabolites in the body?

answered Feb 13 in Medicinal Chemistry

1 answer 52 views

What is the vibration frequency of carbon dioxide (CO2) using infrared spectroscopy?

answered Feb 13 in Physical Chemistry

1 answer 35 views

How can we design a cost-effective and efficient system using chemical processes to recover valuable metals such as gold, silver, and copper from electronic waste?

answered Feb 12 in Chemical engineering

1 answer 34 views

How can the structure-activity relationship of natural products be used to design more potent and selective drugs for the treatment of a specific disease?

asked Feb 11 in Medicinal Chemistry

1 answer 37 views

How can the mechanical properties of polymeric materials be improved during the manufacturing process?

answered Feb 10 in Polymer Chemistry

1 answer 43 views

How can the electronic transport properties of a molecular system be evaluated using density functional theory (DFT) calculations, and how do factors such as molecular structure and device contacts impact the resulting transport properties?

asked Feb 7 in Computational Chemistry

1 answer 35 views

How can chemistry educators effectively advocate for increased funding for chemistry education in schools and universities to promote science literacy and prepare students for careers in chemistry?

answered Feb 4 in Chemical education

1 answer 109 views

Given the molecular formula of a diatomic molecule (A2), how can we use calculation of molecular orbitals to determine the bond order and predict the bond length?

answered Feb 4 in Quantum Chemistry

1 answer 105 views

What is the concentration of iron (II) ions in a water sample, measured in mg/L, if the sample has an absorbance reading of 0.345 at a wavelength of 477 nm using a colorimeter and following the methodology of the 1,10-phenanthroline method?

asked Jan 30 in Analytical Chemistry

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