Recent activity by SherriBorell

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How does the size and shape of a molecule affect its electronic excited states and corresponding optical properties?

answered 23 hours ago in Quantum Chemistry

1 answer 17 views

What is the relationship between the size of nanoparticles and their surface area to volume ratio, and how does this affect their properties and potential applications in different fields?

answered 1 day ago in Physical Chemistry

1 answer 12 views

What is the relationship between the photochemical properties of a dye or pigment and its color?

answered 1 day ago in PhotoChemistry

1 answer 21 views

What is the optimized temperature and reaction conditions for the synthesis of polystyrene from styrene monomers using free radical polymerization?

asked 3 days ago in Chemical synthesis

1 answer 19 views

What is the optimal ratio of diisocyanate to polyol for synthesizing polyurethane with the desired mechanical properties?

answered 3 days ago in Chemical synthesis

1 answer 26 views

How does the binding affinity between two specific protein molecules change under varying pH conditions? Provide a detailed explanation with experimental evidence and propose possible explanations for the observed changes.

answered Feb 17 in BioChemistry

1 answer 22 views

How does the adsorption energy of a gas molecule on a metal surface change as the metal's electronic properties vary, and how can Density Functional Theory (DFT) calculations be used to predict and optimize this behavior?

asked Feb 17 in Computational Chemistry

1 answer 40 views

What is the mechanism of the acid-catalyzed dehydration of 1-methoxy-2-methylcyclohexane to yield a mixture of alkenes? Draw the structures of the expected alkenes and explain which one is the major product and why.

asked Feb 17 in Organic Chemistry

1 answer 31 views

How do surface-active agents in detergents and cleaning agents affect surface tension and interfacial tension in aqueous solutions, and how does this impact their effectiveness in removing oil and grease from surfaces?

asked Feb 17 in Surface Chemistry

1 answer 37 views

What is the bond order and bond length of the carbon-oxygen double bond in carbon dioxide?

asked Feb 13 in Inorganic Chemistry

1 answer 41 views

How can the size and surface properties of nanoparticles be optimized to improve drug delivery to cancer cells while minimizing toxicity to healthy cells?

asked Feb 10 in Medicinal Chemistry

1 answer 37 views

How can chemistry teachers provide better support for students with learning disabilities in the classroom to ensure they have equal access to learning opportunities and achieve success in the subject?

answered Feb 5 in Chemical education

1 answer 31 views

How can molecular docking studies help in identifying potential lead compounds for drug discovery targeting a specific biological target?

answered Feb 5 in Computational Chemistry

1 answer 60 views

Calculate the polarization resistance of a copper electrode in a 0.1 M copper sulfate solution at 25°C, given that the current density is 10 mA/cm² and the exchange current density is 0.1 mA/cm². The Tafel slope is 30 mV/decade.

asked Feb 3 in ElectroChemistry

1 answer 10 views

How does the mechanism of carbon fixation during photosynthesis in plants involve the enzymes ribulose bisphosphate carboxylase-oxygenase (RuBisCO) and phosphoenolpyruvate carboxylase (PEPC) and what is its significance in the contribution of atmospheric CO2 absorption?

asked Jan 31 in BioChemistry

1 answer 102 views

A chemistry student has 20 grams of sodium hydroxide and 25 grams of hydrochloric acid. What is the limiting reactant in the reaction and how much product can be formed? (Assuming the balanced equation is NaOH + HCl → NaCl + H2O)

asked Jan 22 in Chemical reactions

1 answer 62 views

A 0.1 M solution of ammonia (NH3) has a pH of 11.64 at room temperature. If sodium hydroxide (NaOH) is added to this solution such that the concentration of OH- ions becomes 0.01 M, what will be the new pH of the solution? (Assume that the dissociation of water can be ignored)

answered Jan 22 in Chemical equilibrium

1 answer 92 views

Balance the following chemical equation for the inorganic compound calcium hydroxide reacting with hydrochloric acid: Ca(OH)2 + HCl -> CaCl2 + H2O

answered Jan 21 in Inorganic Chemistry

1 answer 35 views

What is the theoretical foundation for psychodynamic therapy?

asked Jan 20 in Psychology

1 answer 71 views

According to Maslow's hierarchy of needs, what motivates behaviour?

answered Jan 20 in Psychology

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