Recent activity by LoreneQ88420

1 answer 18 views

How does the reaction rate affect the selectivity of a chemical reaction involving two reactants of different concentrations?

asked 3 days ago in Chemical kinetics

1 answer 23 views

How does the presence of a metal catalyst affect the activation energy of a catalytic reaction, and what is the relationship between the electronic properties of the metal and its catalytic activity as predicted by density functional theory calculations?

answered 3 days ago in Computational Chemistry

1 answer 14 views

How does the polarity of the solvent affect the rate of the photochemical reaction of a given compound when exposed to light?

asked 3 days ago in PhotoChemistry

1 answer 27 views

What is the optimal pH range for the treatment of acid mine drainage in order to prevent the release of toxic heavy metals into the environment?

asked 3 days ago in Environmental Chemistry

1 answer 15 views

What is the standard enthalpy of formation of sodium chloride (NaCl) given the following information: the standard enthalpy of formation of sodium (Na) is -108.5 kJ/mol and the standard enthalpy of formation of chlorine (Cl2) is 0 kJ/mol?

answered 5 days ago in ThermoChemistry

1 answer 30 views

How does the coordination chemistry of iron in hemoglobin facilitate its role in oxygen transport and binding in the human body?

answered 6 days ago in Coordination Chemistry

1 answer 36 views

How does the chemical composition and structure of luminescent materials affect their photochemical properties, and how can this knowledge be applied to optimize the brightness and efficiency of these materials for various applications?

answered Feb 18 in PhotoChemistry

1 answer 32 views

What is the bond strength of the molecule H2O? Is it stronger or weaker than the bond strength of CO2? Justify your answer with the relevant theories and experimental data.

asked Feb 18 in Chemical bonding

1 answer 36 views

What is the role of metal ions in the catalytic activity of metalloenzymes and metalloproteins? Provide specific examples and discuss the coordination geometry and ligand environment of the metal ions in these enzymes/proteins.

answered Feb 13 in Coordination Chemistry

1 answer 30 views

What is the net ATP gained during glycolysis, and how is it generated?

answered Feb 13 in BioChemistry

1 answer 31 views

How can the photochemical degradation of pollutants in the environment be optimized using advanced oxidation processes and what are the mechanisms involved?

answered Feb 10 in PhotoChemistry

1 answer 11 views

How can the mechanical properties of 3D printed polymer-based materials be improved, and what factors should be considered in the design and synthesis of materials for 3D printing?

answered Feb 10 in Polymer Chemistry

1 answer 27 views

How can the mechanical and thermal properties of polymer-based composites be optimized for specific aerospace applications such as aircraft components or spacecraft structures?

asked Feb 7 in Polymer Chemistry

1 answer 34 views

How can the mechanical and thermal properties of polymer-based composites be optimized for their efficient use in aerospace applications?

asked Feb 7 in Polymer Chemistry

1 answer 39 views

How can medicinal chemists develop new treatments for autoimmune diseases that target the immune system specifically without affecting other healthy cells?

answered Feb 5 in Medicinal Chemistry

1 answer 34 views

Determine the equilibrium constant (Kc) for the reaction 2NO(g) + O2(g) ⇌ 2NO2(g) if the initial concentration of NO is 0.15 M, O2 is 0.10 M and NO2 is 0.30 M at equilibrium.

answered Feb 4 in Chemical reactions

1 answer 51 views

Calculate the standard enthalpy change for the neutralization of 50 mL of 0.1 M hydrochloric acid with 50 mL of 0.1 M sodium hydroxide at a constant pressure and a temperature of 25°C. The balanced equation for the reaction is: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)

asked Feb 3 in Chemical thermodynamics

1 answer 82 views

Using ab initio calculations, determine the dipole moment of water (H2O) molecule and compare it with the experimental value.

asked Jan 30 in Computational Chemistry

1 answer 10 views

How can the chemical engineer design a system for the production of strawberry flavoring that is both cost-effective and meets regulatory standards for food safety?

asked Jan 30 in Chemical engineering

1 answer 50 views

How can we determine the elemental composition of a given sample using X-ray fluorescence spectroscopy?

asked Jan 29 in Analytical Chemistry

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