Recent activity by VicenteWinif

1 answer 21 views

What is the effect of changing the concentration of a reactant or a product on the reaction rate at equilibrium for the reaction between iodide ion and persulfate ion?

answered 3 days ago in Chemical kinetics

1 answer 12 views

What is the mechanism of the reaction between benzene and bromine to form bromobenzene?

asked 3 days ago in Organic Chemistry

1 answer 23 views

What is the rate of energy transfer between two molecules in a gas phase reaction, and how does the energy transfer impact the overall reaction rate?

answered 3 days ago in Quantum Chemistry

1 answer 26 views

How does the primary structure of a protein affect its overall function and properties? Provide specific examples of how changes in the amino acid sequence can impact the protein's behavior.

answered 3 days ago in BioChemistry

1 answer 16 views

What is the most energy-efficient and cost-effective process for producing a high volume of hydrogen gas with minimal environmental impact for industrial applications like fuel cell technology?

answered 4 days ago in Chemical engineering

1 answer 17 views

What is the impact of pH on the rate of photochemical reactions involving hydrogen peroxide and halogenated acetates, and what mechanisms are responsible for the observed rate changes in different pH conditions?

asked 5 days ago in PhotoChemistry

1 answer 26 views

What is the effect of molecular weight and processing conditions on the flow behavior of a polymer melt? How does molecular weight distribution affect the viscosity of a polymer melt?

answered 5 days ago in Polymer Chemistry

1 answer 31 views

How does the electron transport chain generate ATP during oxidative phosphorylation in the citric acid cycle? Include the specific electron carrier molecules and the role of oxygen in the process.

asked 5 days ago in BioChemistry

1 answer 26 views

What is the effect of substrate concentration on the rate of enzyme activity, and how does the presence of an inhibitor affect this relationship in Enzyme kinetics?

answered 5 days ago in BioChemistry

1 answer 19 views

How does the addition of impurities affect the superconducting properties of YBaCuO materials?

answered Feb 17 in Materials Chemistry

1 answer 29 views

How to optimize the mechanical properties of a polymer-based scaffold for use in tissue engineering applications?

asked Feb 14 in Materials Chemistry

1 answer 35 views

What would be the molecular geometry and polarity of IF5 in the gas phase?

asked Feb 13 in Inorganic Chemistry

1 answer 33 views

How can the efficiency of organic solar cells composed of polymer-based materials be improved?

answered Feb 7 in Polymer Chemistry

1 answer 27 views

How can the design and synthesis of small molecule inhibitors be optimized for the treatment of autoimmune diseases, particularly those targeting specific immune cell pathways and receptors?

asked Feb 6 in Medicinal Chemistry

1 answer 36 views

How can crystallography and knowledge of crystal structures be used to determine the purity of a particular substance?

asked Feb 6 in Physical Chemistry

1 answer 53 views

Design a distillation column that separates a mixture of ethanol and water with a 95% ethanol purity and a production rate of 1000 liters per hour. The mixture contains 50% ethanol and 50% water by volume. The distillation column should operate at a pressure of 1 atm and a temperature range of 78-85°C. Assume that the feed enters the column as a saturated liquid and that the overhead product is 90% ethanol, while the bottom product is 5% ethanol. Determine the number of stages required and the reflux ratio for this system.

answered Feb 3 in Chemical engineering

1 answer 59 views

What is the coordination environment of the metal ion in the active site of the enzyme carbonic anhydrase, and how does this coordination affect the enzyme's catalytic activity?

answered Jan 31 in Coordination Chemistry

1 answer 78 views

What are the key historical milestones in the development of the periodic table of elements, and how did they contribute to our understanding of chemical elements and their behavior?

asked Jan 30 in Chemical education

1 answer 59 views

How can liquid chromatography be used to identify the components present in a sample mixture, and what is the specific protocol to be followed to separate and analyze the components accurately?

answered Jan 29 in Analytical Chemistry

1 answer 43 views

Calculate the enthalpy change for the hydrolysis of 2 moles of sucrose (C12H22O11) given the standard enthalpies of formation of sucrose, glucose, and fructose are -2220 kJ/mol, -1274 kJ/mol, and -915 kJ/mol respectively.

asked Jan 23 in ThermoChemistry

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