Recent activity by Lourdes26529

1 answer 28 views

How does the route of administration of a drug affect its pharmacokinetics and ultimately its effectiveness in treating a disease?

asked Feb 24 in Medicinal Chemistry

1 answer 31 views

What is the relationship between the frequency of infrared radiation and the type of molecular vibrations observed in a sample of organic compound?

asked Feb 24 in Physical Chemistry

1 answer 14 views

How does the reaction rate affect the selectivity of a reaction between chemicals A and B? Is there a specific reaction rate at which the selectivity of the reaction is optimal? Explore these questions using kinetic experiments and analysis.

asked Feb 22 in Chemical kinetics

1 answer 24 views

What is the effect of different wavelengths of light on the reaction rate between potassium permanganate and oxalic acid?

asked Feb 22 in Chemical kinetics

1 answer 33 views

How does the proteasome identify and degrade misfolded or damaged proteins in a cell?

asked Feb 22 in BioChemistry

1 answer 29 views

What is the optimum temperature and pressure for the production of polyethylene oxide from the monomer ethylene oxide using a catalytic reactor? And what are the key properties of the resulting polymer, such as molecular weight and functionality?

answered Feb 22 in Chemical synthesis

1 answer 29 views

How does the intensity of light affect the rate of a photochemical reaction involving the degradation of a particular organic compound?

answered Feb 20 in PhotoChemistry

1 answer 33 views

How does the increase in greenhouse gas concentrations, such as carbon dioxide, methane, and nitrous oxide, impact the global temperature and climate patterns?

asked Feb 20 in Environmental Chemistry

1 answer 32 views

What are the most effective catalysts to use in the production of ammonium nitrate fertilizer via the Haber process, and how do their properties affect the rate of the reaction and yield of the product?

answered Feb 20 in Chemical engineering

1 answer 30 views

What is the effect of the activated carbon dosage on the adsorption efficiency of pollutants in water using activated carbon as an adsorbent?

answered Feb 19 in Surface Chemistry

1 answer 31 views

What novel chemical compounds can be synthesized for the treatment of irritable bowel syndrome (IBS) and how can the structure-activity relationships be optimized for their effectiveness?

asked Feb 19 in Medicinal Chemistry

1 answer 26 views

What is the balanced chemical equation for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas, and how much of each reactant is required to produce a yield of 50g of the product?

answered Feb 17 in Chemical synthesis

1 answer 30 views

What is the mechanism for the addition reaction between an alkene and hydrogen bromide (HBr) in the presence of peroxide (ROOR)?

asked Feb 17 in Organic Chemistry

1 answer 29 views

How do the photochemical properties of quantum dots vary depending on their size and composition, and how can this information be used to better understand and control their behavior in practical applications such as solar cells or LEDs?

asked Feb 14 in PhotoChemistry

1 answer 92 views

What are the specific enzymes involved in the degradation and turnover of proteins in lysosomes, and what is their mechanism of action?

asked Feb 13 in BioChemistry

1 answer 59 views

What is the energy level and wavelength of the transition from the first excited state to the ground state of a hydrogen atom using quantum chemical calculations?

answered Feb 13 in Computational Chemistry

1 answer 49 views

How can chemistry teachers provide better support and accommodations for students with learning disabilities to effectively learn and understand chemistry concepts and apply them in laboratory experiments?

asked Feb 5 in Chemical education

1 answer 71 views

Determine the standard enthalpy change of the precipitation reaction between aqueous solutions of copper (II) sulfate and calcium hydroxide, given that the reaction produces copper (II) hydroxide, solid calcium sulfate and water as the products. The initial concentrations of the solutions are 0.1 M for copper (II) sulfate and 0.05 M for calcium hydroxide, and the reaction takes place at constant pressure and temperature of 25°C.

answered Feb 4 in Chemical thermodynamics

1 answer 110 views

Calculate the standard entropy change for the reaction of 2 moles of nitrogen gas reacting with 5 moles of oxygen gas to produce 2 moles of nitrogen monoxide gas at a constant pressure of 1 bar and 298 K. Given the standard molar entropy of nitrogen gas, oxygen gas, and nitrogen monoxide gas to be 191.6 J K-1 mol-1, 205.0 J K-1 mol-1, and 210.6 J K-1 mol-1, respectively.

answered Feb 3 in Chemical thermodynamics

1 answer 54 views

Calculate the standard enthalpy change of the following reduction reaction if the standard enthalpy of formation of FeO is -272.0 kJ/mol and that of Fe is 0 kJ/mol.FeO(s) + H2(g) → Fe(s) + H2O(l)

asked Feb 3 in ThermoChemistry

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