Recent activity by AlanCoover5

1 answer 22 views

What is the relationship between the size of nanoparticles and their electronic and optical properties, as determined by quantum calculations?

answered 1 day ago in Quantum Chemistry

1 answer 25 views

What is the predicted bond angle in a water molecule using the Valence Shell Electron Pair Repulsion (VSEPR) theory, and how does it compare to the actual bond angle?

answered 3 days ago in Quantum Chemistry

1 answer 20 views

What is the overpotential required to generate a current of 0.5 A in a galvanic cell where the standard potential is 1.4 V and the actual potential is 1.6 V? Show the calculations and explain why the overpotential is necessary for the reaction to proceed.

answered 3 days ago in ElectroChemistry

1 answer 15 views

What is the most efficient method for synthesizing 2,4-dinitrophenol from phenol and nitric acid with a high yield?

answered 4 days ago in Chemical synthesis

1 answer 26 views

How does the molecular structure of sunscreen agents affect their photochemical properties, and how can this knowledge be used to design more efficient and stable sunscreens that offer optimal UV protection for longer periods of time?

asked 4 days ago in PhotoChemistry

1 answer 32 views

How do the mechanical and thermal properties of polymer nanocomposites vary when different types of nanoparticles are added at varying concentrations?

asked 5 days ago in Polymer Chemistry

1 answer 19 views

What is the magnetic susceptibility anisotropy of Benzene?

asked 5 days ago in Quantum Chemistry

1 answer 29 views

What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) and how does it change with temperature and concentration of the solution?

asked 6 days ago in Surface Chemistry

1 answer 27 views

How does the concentration of substrate affect the rate of enzyme catalyzed reaction? Provide a detailed explanation using the Michaelis-Menten equation.

asked 6 days ago in BioChemistry

1 answer 22 views

What is the effect of varying the composition of metal alloys on their mechanical properties, such as strength, ductility, and corrosion resistance, and how does this relate to the performance of the alloys in aerospace applications?

asked 6 days ago in Materials Chemistry

1 answer 30 views

How does the chiral nature of a molecule affect its photochemical properties, such as its ability to undergo photoisomerization or photodegradation, and what factors influence this relationship?

answered Feb 18 in PhotoChemistry

1 answer 36 views

How does the catalyst's metal surface composition and structure affect the selectivity and efficiency of the oxidation of which type of hydrocarbon?

asked Feb 18 in Surface Chemistry

1 answer 18 views

What is the bond angle in the water molecule and how is it predicted using the VSEPR theory and the electron pair geometry of the molecule?

asked Feb 18 in Chemical bonding

1 answer 22 views

What is the equilibrium constant for the reaction between nitrogen gas and hydrogen gas to form ammonia gas at 500°C given that the equilibrium concentrations are [N2] = 0.25 M, [H2] = 0.20 M and [NH3] = 0.10 M?

asked Feb 17 in Chemical equilibrium

1 answer 26 views

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

answered Feb 17 in Chemical reactions

1 answer 28 views

How does the addition of different metals and their respective compositions affect the tensile strength and corrosion resistance of a metal alloy used in aerospace applications?

asked Feb 17 in Materials Chemistry

1 answer 25 views

How does temperature affect the phase transition process in water using Monte Carlo simulations?

asked Feb 17 in Computational Chemistry

1 answer 31 views

How can we optimize the extrusion process for a specific polymer to achieve desired properties in the final product?

answered Feb 14 in Polymer Chemistry

1 answer 39 views

How can we increase diversity in the chemistry field to ensure that more underrepresented groups have equal access to opportunities and resources, and promote a more inclusive and equitable environment within the chemistry community?

asked Feb 13 in Chemical education

1 answer 37 views

How can we develop a green and efficient synthesis method for producing metal nanoparticles with controlled size and shape?

asked Feb 12 in Materials Chemistry

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