Recent activity by IsabelleTitu

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What is the relationship between the reaction rate and equilibrium constant for the reaction between potassium iodate and sodium sulfite in acidic aqueous solution, and how does the addition of a catalyst affect this relationship?

asked Feb 22 in Chemical kinetics

1 answer 28 views

How does the prediction of chemical reactivity and selectivity using quantum chemistry methods differ from empirical methods and what are the advantages and limitations of each approach?

answered Feb 22 in Quantum Chemistry

1 answer 30 views

How does the pore size of a metal-organic framework affect its ability to absorb carbon dioxide molecules? Use computational studies to compare the adsorption capacity of three different metal-organic frameworks with varying pore sizes.

asked Feb 22 in Computational Chemistry

1 answer 31 views

How does the particle size of a gold nanoparticle affect its photochemical properties such as absorbance, emission, and quantum yield under different light sources and intensities?

asked Feb 22 in PhotoChemistry

1 answer 30 views

What are the key steps involved in the development of a chemical process for the production of polymers? How do these steps vary depending on the type of polymer being produced and the desired properties of the final product?

answered Feb 19 in Chemical engineering

1 answer 33 views

How does the binding affinity between proteins affect the formation of protein-protein complexes and their biological functions?

answered Feb 17 in BioChemistry

1 answer 26 views

What is the balanced chemical equation for the reaction of hydrochloric acid (HCl) with sodium bicarbonate (NaHCO3) and what gas is evolved during the reaction?

asked Feb 17 in Chemical reactions

1 answer 29 views

How does quantum coherence and entanglement affect the electronic states and properties of small molecules and nanoscale systems?

asked Feb 14 in Quantum Chemistry

1 answer 33 views

How can we predict the catalytic activity and selectivity of a given catalyst using quantum chemistry? Please provide examples of catalysts and their predicted performance based on quantum chemistry calculations.

answered Feb 14 in Quantum Chemistry

1 answer 41 views

How does the process of protein degradation and turnover occur in a cell and what are the specific mechanisms involved in the breakdown of various types of proteins, including enzymes and structural proteins, in both normal and aberrant conditions?

answered Feb 14 in BioChemistry

1 answer 37 views

What factors affect the pharmacokinetics of a drug in the human body and how do they influence its therapeutic effectiveness? Bitte specify an example drug and describe its pharmacokinetic properties in detail.

asked Feb 14 in Medicinal Chemistry

1 answer 62 views

What is the coordination environment around the metal ion in the active site of a metalloenzyme, specifically in the case of carbonic anhydrase? How do changes in the coordination geometry affect the function of the enzyme?

asked Feb 13 in Coordination Chemistry

1 answer 67 views

How do different factors like light intensity, wavelength and presence of catalysts affect the rate and selectivity of a specific photochemical reaction in an organic compound?

asked Feb 12 in PhotoChemistry

1 answer 59 views

How does the coordination chemistry of metalloproteins and enzymes contribute to their biological function and provide insights into their mechanisms of action?

asked Feb 12 in Coordination Chemistry

1 answer 33 views

How can the coordination chemistry principles be utilized in the development of effective chelation therapies for heavy metal poisoning?

answered Feb 6 in Coordination Chemistry

1 answer 109 views

Design a distillation column to separate a mixture of acetone and water containing 35% (by mole) acetone with a feed rate of 1000 kg/hr. The desired purity of the overhead product is 99% acetone, and the bottom product should contain no more than 0.5% acetone. The available reflux ratio is 2.5, and the feed is at its boiling point at normal atmospheric pressure. Determine the number of theoretical trays required, the optimum feed tray location, and the reflux and boilup rates needed for the design.

asked Feb 4 in Chemical engineering

1 answer 87 views

Calculate the standard enthalpy change for the dissolution of 10 g of NaOH in 100 mL of water at 25°C if the molar enthalpy of dissolution is -44.5 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 76 views

Calculate the standard enthalpy change for the complete combustion of 2 moles of methane gas under standard conditions, where all reactants and products are in their standard states. The balanced chemical equation for the combustion of methane is CH4(g) + 2O2(g) → CO2(g) + 2H2O(l), and the standard enthalpy of formation ΔH°f for methane, carbon dioxide, and water are -74.8 kJ/mol, -393.5 kJ/mol, and -285.8 kJ/mol, respectively.

asked Feb 3 in Chemical thermodynamics

1 answer 89 views

How do changes in molecular geometry affect the calculation of magnetic properties in molecules and materials using quantum chemistry?

answered Jan 31 in Quantum Chemistry

1 answer 100 views

What is the percent composition of carbon, hydrogen, and nitrogen in a sample of caffeine? Use elemental analysis to determine the answer.

asked Jan 31 in Analytical Chemistry

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