Recent activity by JoyEdge34400

1 answer 19 views

How does the size and shape of a solid catalyst affect the rate of a catalytic reaction? Provide experimental evidence to support your answer.

asked 1 day ago in Surface Chemistry

1 answer 18 views

What is the relationship between the chemical structure of a drug and its pharmacodynamic properties in the human body? Use examples of drugs and their molecular structures to support your answer.

asked 1 day ago in Medicinal Chemistry

1 answer 20 views

How does the reaction rate affect the selectivity of the reaction between FeCl3 and KCNS in terms of the color change observed, as measured by UV-Vis spectroscopy?

asked 3 days ago in Chemical kinetics

1 answer 22 views

How does the presence of a functional group on the fluorescent dye molecule affect its photochemical properties, such as excitation and emission wavelengths?

asked 3 days ago in PhotoChemistry

1 answer 22 views

What is the predicted bond angle in the water molecule and why is it different from the predicted bond angle in the carbon dioxide molecule?

answered 3 days ago in Chemical bonding

1 answer 20 views

How does the molecular weight of a polymer affect the flow behavior of its melt under shear stress?

answered 4 days ago in Polymer Chemistry

1 answer 29 views

How can the yield of a chemical reaction be optimized by manipulating the reaction conditions and parameters such as temperature, pressure, reactant concentrations, and catalysts for the synthesis of ethyl acetate via Fischer esterification reaction?

answered 5 days ago in Chemical engineering

1 answer 27 views

How does the degree of entanglement in molecular and nanoscale systems affect their properties and behavior under various physical conditions?

answered 6 days ago in Quantum Chemistry

1 answer 22 views

What is the reaction mechanism of the conversion of methanol to formic acid in the presence of a water molecule? Use quantum chemical calculations to determine the transition state, activation energy, and Gibbs free energy of the reaction.

asked 6 days ago in Computational Chemistry

1 answer 27 views

How does the composition and amount of oil released during an oil spill affect the extent of its impact on the environment and what are the chemical processes that occur during the degradation of oil in water and on shorelines?

answered Feb 18 in Environmental Chemistry

1 answer 21 views

How does the activation of the enzyme Phospholipase A2 lead to the production of signaling molecules such as prostaglandins and leukotrienes in the arachidonic acid pathway of lipid metabolism?

answered Feb 17 in BioChemistry

1 answer 22 views

How does surface modification of polymers, such as plasma treatment or chemical functionalization, affect their hydrophobicity and adhesion properties?

answered Feb 17 in Surface Chemistry

1 answer 35 views

How do the properties of polyurethane change with varying ratios of diisocyanate and polyol in the chemical synthesis process, and how do these changes affect the performance and potential applications of the resulting material?

answered Feb 14 in Chemical synthesis

1 answer 34 views

What type of hybrid orbitals are present in the molecule of formaldehyde (H2CO)?

answered Feb 13 in Chemical bonding

1 answer 30 views

What is the effect of crosslinking density on the adhesive and sealing properties of polymer-based adhesives and sealants?

answered Feb 12 in Polymer Chemistry

1 answer 39 views

How can the properties of semiconductors be modified to improve the efficiency and durability of electronic devices, such as solar cells or transistors?

answered Feb 10 in Materials Chemistry

1 answer 44 views

How can the properties of polymer-based smart materials be tuned to achieve an optimal response to a specific stimulus?

asked Feb 10 in Polymer Chemistry

1 answer 27 views

How can the chemical engineering principles be applied to design a sustainable and cost-effective system for the production of cosmetics, taking into account the environmental impact and the safety of both workers and consumers?

asked Feb 6 in Chemical engineering

1 answer 28 views

How can technology be effectively integrated into chemistry education to help students better understand complex concepts, without becoming a distraction or hindrance to their learning process?

answered Feb 6 in Chemical education

1 answer 38 views

How can limited exposure to current research in chemistry impact a student's understanding of the subject and hinder their ability to apply it in practical settings?

asked Feb 6 in Chemical education

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