Recent activity by MarcellaR325

1 answer 76 views

How does the size and shape of a metallic nanoparticle affect its surface properties, such as reactivity with molecules, when analyzed using density functional theory calculations?

asked Feb 24 in Computational Chemistry

1 answer 88 views

What is the effect of changing the concentration of reactants on the reaction rate and sustainability in the reaction between sodium thiosulfate and hydrochloric acid?

asked Feb 22 in Chemical kinetics

1 answer 76 views

How do the physical properties (such as viscosity, conductivity, and solubility) of ionic liquids change with different cations and anions?

asked Feb 22 in Physical Chemistry

1 answer 94 views

What is the activation energy for the decomposition of hydrogen peroxide in the presence of a catalyst at a specific temperature? How does the activation energy compare to the uncatalyzed reaction?

asked Feb 17 in Chemical kinetics

1 answer 85 views

What is the activation energy for the acid-catalyzed hydrolysis of sucrose at 25°C?

asked Feb 17 in Chemical kinetics

1 answer 77 views

How can the use of nanotechnology improve the efficacy and reduce the side effects of drug delivery systems in cancer treatment?

answered Feb 13 in Medicinal Chemistry

1 answer 181 views

What is the color of iron(III) chloride, FeCl3, in aqueous solution, and how does it change with increasing concentration?

asked Feb 13 in Inorganic Chemistry

1 answer 72 views

How does insulin regulate glucose metabolism in the body and what are the molecular mechanisms involved in insulin signaling pathway?

asked Feb 13 in BioChemistry

1 answer 115 views

How can we improve the photochemical stability and sensitivity of photosensitive materials used in black and white photography?

asked Feb 13 in PhotoChemistry

1 answer 159 views

What are the electrical properties of graphene, and how can they be optimized for use in high-performance electronic devices?

asked Feb 13 in Materials Chemistry

1 answer 123 views

How does the excessive use of fertilizers and its subsequent run-off contribute to eutrophication, and what are the potential impacts and remedial measures that can be taken to prevent it in aquatic ecosystems?

answered Feb 13 in Environmental Chemistry

1 answer 99 views

How does the density functional theory calculations of electronic properties of materials change when the applied external electric field increases or decreases? Provide key factors that can affect the accuracy of the electronic property predictions.

answered Feb 12 in Computational Chemistry

1 answer 129 views

How can the synthesis of polyethylene from ethylene monomer be optimized to produce a higher molecular weight polymer?

asked Feb 11 in Chemical synthesis

1 answer 81 views

How can the packaging of hazardous liquids be optimized for transportation without causing any harm to people or the environment?

answered Feb 10 in Chemical engineering

1 answer 84 views

How can the chemical composition and formulation of a natural cosmetic product be optimized to ensure adequate shelf life and stability while maintaining its effectiveness and desirable sensory properties?

asked Feb 6 in Chemical engineering

1 answer 91 views

How can the adhesion and surface properties of polymeric materials be modified to enhance their performance in specific applications, such as biomedical implants or high-strength adhesives?

answered Feb 6 in Polymer Chemistry

1 answer 94 views

How can instructors in a chemistry classroom provide more effective support for students with learning disabilities to achieve their academic goals in the subject?

answered Feb 5 in Chemical education

1 answer 89 views

How can different luminescent materials be optimized for use in energy-efficient lighting applications?

answered Feb 5 in PhotoChemistry

1 answer 73 views

Determine the boiling point of sodium chloride (NaCl) at an external pressure of 1 atm, given its heat of vaporization is 406.6 kJ/mol and its melting point is 801°C.

answered Feb 4 in Inorganic Chemistry

1 answer 127 views

Calculate the standard enthalpy change for the reaction between 50 ml of 0.2 M HCl (aq) and 50 ml of 0.2 M NaOH (aq) at 25°C, given that the specific heat capacity of the combined solution is 4.18 J/g °C and the density of the combined solution is 1.0 g/mL.

answered Feb 3 in Chemical thermodynamics

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