Recent activity by LeesaJ55672

1 answer 33 views

How do the photochemical properties of gold nanoparticles differ from those of silver nanoparticles when exposed to UV radiation in a solution containing a reducing agent?

asked Feb 22 in PhotoChemistry

1 answer 26 views

How does the hydrogen bonding between nucleotide bases affect the stability of the double helix structure of DNA? Provide a detailed explanation with relevant examples.

answered Feb 20 in BioChemistry

1 answer 35 views

How is the degradation of proteins regulated in cells, and what is the significance of protein turnover in cellular processes?

answered Feb 19 in BioChemistry

1 answer 28 views

What is the critical micelle concentration (CMC) of sodium lauryl sulfate (SLS) in water at room temperature and what factors affect its value?

asked Feb 19 in Surface Chemistry

1 answer 31 views

How do the chemical structures and properties of polymer-based adhesives and sealants affect their bonding strength and durability, and which factors can be optimized to improve their performance?

answered Feb 18 in Polymer Chemistry

1 answer 36 views

How does the chemical structure of a drug affect its pharmacodynamics in the body? Provide examples of different drug classes and their mechanisms of action.

asked Feb 18 in Medicinal Chemistry

1 answer 39 views

How does the chemical structure of a drug affect its pharmacodynamics in the body?

answered Feb 18 in Medicinal Chemistry

1 answer 55 views

What is the effect of increasing substrate concentration on the reaction rate and efficiency of an enzyme-catalyzed reaction?

answered Feb 13 in Chemical kinetics

1 answer 52 views

What effect will increasing the pressure have on the equilibrium position of a reaction where the number of moles of gas increases? Provide an explanation based on Le Chatelier's principle.

asked Feb 13 in Chemical equilibrium

1 answer 34 views

How does the exposure to pesticide residues in fruits and vegetables affect the concentration of organophosphate metabolites in children's urine samples?

answered Feb 13 in Environmental Chemistry

1 answer 34 views

What novel drug development strategies can be used to design effective treatments for viral infections with a focus on broad-spectrum antivirals?

asked Feb 12 in Medicinal Chemistry

1 answer 29 views

How can the knowledge of enzymatic mechanisms and metabolic pathways be applied to design drugs for treating metabolic disorders such as diabetes or obesity? Specifically, what properties or strategies should be considered in order to develop drugs that can selectively target and modulate key enzymes or metabolic pathways involved in disease pathophysiology?

asked Feb 7 in Medicinal Chemistry

1 answer 43 views

How can the ability of a material to emit light after being excited by UV radiation be enhanced through the manipulation of its molecular structure?

answered Feb 6 in PhotoChemistry

1 answer 43 views

How can computational chemistry be used to determine the binding affinity between a host molecule and guest molecules in supramolecular chemistry?

answered Feb 5 in Computational Chemistry

1 answer 65 views

Calculate the standard enthalpy change for the combustion of methane gas at standard conditions, given the following balanced chemical equation:CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l)Note: Standard conditions refer to a temperature of 25°C and a pressure of 1 atm.

asked Feb 3 in Chemical thermodynamics

1 answer 102 views

Calculate the standard electrode potential for the reaction Ag+ (aq) + Cu (s) → Ag (s) + Cu2+ (aq) given that the standard electrode potentials for Ag+ (aq) + e- → Ag (s) and Cu2+ (aq) + 2e- → Cu (s) are 0.80 V and 0.34 V respectively.

asked Feb 3 in Chemical thermodynamics

1 answer 105 views

How does the energy profile diagram for a chemical reaction provide insight into the predicted reaction rate and mechanism?

answered Jan 31 in Quantum Chemistry

1 answer 58 views

How can we analyze the composition of a given sample using high-performance liquid chromatography (HPLC) and obtain accurate data for the identification and quantification of its components?

answered Jan 29 in Analytical Chemistry

1 answer 78 views

Calculate the magnetic moment of a transition metal complex, [Fe(CN)6]3-, with six cyanide ligands in an octahedral arrangement using crystal field theory. The complex is in a high-spin state and has three unpaired electrons.

answered Jan 23 in Inorganic Chemistry

1 answer 62 views

Calculate the equilibrium constant for a reaction involving a weak oxidizing agent where the concentration of the oxidizing agent is 0.1 M and the concentration of the reduced species is 0.05 M at equilibrium. The balanced chemical equation of the reaction is given as follows:OX + 2 e- ⇌ REDwhere OX is the weak oxidizing agent and RED is the reduced species.

asked Jan 23 in Chemical equilibrium

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