Recent activity by DarbyJackey7

1 answer 31 views

How does the size and shape of a gold nanoparticle affect its stability and reactivity in a molecular dynamics simulation?

asked Feb 24 in Computational Chemistry

1 answer 31 views

What is the effect of the shape and size of metal nanoparticles on their catalytic activity in the reduction of a specific organic compound?

asked Feb 24 in Materials Chemistry

1 answer 34 views

What is the relationship between R/S configurations and the direction of rotation of plane-polarized light for a given chiral compound? Provide an example with a clear explanation.

answered Feb 22 in Organic Chemistry

1 answer 27 views

How does the presence of UV radiation affect the degradation and stability of polyethylene and polystyrene, and how can this degradation be minimized for the production of long-lasting plastic products?

asked Feb 22 in Polymer Chemistry

1 answer 27 views

How does the lipid composition of a cell membrane affect its fluidity and permeability to different molecules?

asked Feb 20 in BioChemistry

1 answer 35 views

What is the effect of temperature on the surface tension of water, and how can it be measured accurately?

asked Feb 20 in Surface Chemistry

1 answer 36 views

What is the effect of solvent polarity on the rate of reaction between sodium hydroxide and acetic acid?

asked Feb 19 in Chemical kinetics

1 answer 40 views

What is the effect of crosslinking density on the swelling behavior of polymer-based superabsorbent materials?

answered Feb 19 in Polymer Chemistry

1 answer 39 views

What is the coordination geometry of [Fe(H2O)6]2+ in aqueous solution, as determined by UV-Vis spectroscopy?

answered Feb 19 in Coordination Chemistry

1 answer 39 views

How does the chemical structure of photochromic materials affect their photochemical properties, and what are the different mechanisms involved in their photochromism?

answered Feb 18 in PhotoChemistry

1 answer 30 views

How does the chemical structure of a polymer affect its mechanical properties when used in 3D printing, and what are the most suitable polymers for producing robust and functional 3D printed objects?

asked Feb 18 in Materials Chemistry

1 answer 33 views

What is the bond strength of a water molecule and how can it be predicted using molecular orbital theory?

answered Feb 18 in Chemical bonding

1 answer 39 views

How can we use structure-based drug design to develop a new antibiotic that specifically targets the cell wall of Gram-negative bacteria, without affecting the healthy cells of the host organism?

asked Feb 14 in Medicinal Chemistry

1 answer 62 views

How many geometric isomers can be formed for the square planar complex (PtCl₂(NH₃)₂)?

asked Feb 13 in Coordination Chemistry

1 answer 82 views

How can the synthesis of carbon nanotubes be improved to increase their yield and purity using a new method that is cost-effective and environmentally friendly?

asked Feb 11 in Materials Chemistry

1 answer 40 views

How can the manufacturing process parameters, such as temperature and pressure, impact the properties of the final product in polymer processing?

asked Feb 7 in Polymer Chemistry

1 answer 40 views

How can chemistry students organize fundraisers and outreach programs to increase awareness and generate sufficient funding for chemistry education in their local schools and communities?

asked Feb 5 in Chemical education

1 answer 52 views

Determine the concentration of copper ions in a copper sulfate solution by constructing an electrochemical cell and measuring its voltage using a standard hydrogen electrode.

answered Feb 4 in Physical Chemistry

1 answer 60 views

Calculate the standard enthalpy change for the reaction: CuSO4 (aq) + 4NH3 (aq) -> Cu(NH3)4SO4 (aq) given that the standard enthalpy changes of formation for CuSO4 (aq) and NH3 (aq) are -771.5 kJ/mol and -46.19 kJ/mol respectively, and the standard enthalpy change of formation for Cu(NH3)4SO4 (aq) is -2130.4 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 67 views

Calculate the pH of a 0.1 M solution of hydrochloric acid assuming complete dissociation. The acid dissociation constant (Ka) for HCl is 1.3 × 10^-6 at 25°C.

answered Feb 3 in Chemical reactions

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