Recent activity by GeraldoSuffo

1 answer 25 views

How does the rate of reaction vary with changes in the concentration of reactants and products in a given reaction mechanism?

answered 5 days ago in Chemical kinetics

1 answer 25 views

What is the effect of increasing temperature on the ionization constant (Ka) of a weak acid (e.g. acetic acid) and how can it be calculated using experimental data? Provide an example of a calculation for acetic acid at two different temperatures.

asked 6 days ago in Chemical equilibrium

1 answer 19 views

How does the variation in the reaction rate affect the equilibrium constant for a given chemical reaction?

asked Feb 20 in Chemical kinetics

1 answer 22 views

What would be the effect on the equilibrium constant (Kc) for a reaction if the temperature is increased from 25°C to 35°C? Provide reasons for the observed effect based on Le Chatelier's Principle.

answered Feb 19 in Chemical equilibrium

1 answer 24 views

What is the critical micelle concentration (CMC) of sodium dodecyl sulfate (SDS) in water at room temperature and how does it vary with salt concentration?

answered Feb 19 in Surface Chemistry

1 answer 22 views

What is the critical micelle concentration (CMC) of Sodium Dodecyl Sulfate (SDS) in water at room temperature and pH 7? How does the CMC of SDS change with temperature and pH? How does the presence of dissolved salts affect the CMC of SDS?

asked Feb 19 in Surface Chemistry

1 answer 25 views

How does the choice of exchange-correlation functional affect the accuracy of Density Functional Theory (DFT) calculations in predicting the catalytic activity of a specific reaction?

asked Feb 18 in Computational Chemistry

1 answer 20 views

How does the addition of clay nanoparticles affect the mechanical properties of a polymer matrix in a polymer nanocomposite?

answered Feb 17 in Polymer Chemistry

1 answer 33 views

How does the addition of antioxidants affect the degradation and stability of high-density polyethylene (HDPE) under various environmental conditions?

answered Feb 17 in Polymer Chemistry

1 answer 38 views

What specific photochemical properties can be observed in supramolecular assemblies composed of porphyrin and fullerenes, and how do these properties differ from those of the individual components?

asked Feb 14 in PhotoChemistry

1 answer 33 views

What is the acidity or basicity (pH) of sulfuric acid (H2SO4)? Show the balanced equation for the dissociation of H2SO4 and calculate the concentration of hydrogen ions (H+) in a 0.1M solution of sulfuric acid.

answered Feb 14 in Chemical bonding

1 answer 34 views

How can we use molecular dynamics simulations to study the protein folding process and predict the most stable conformation of a protein?

asked Feb 13 in Computational Chemistry

1 answer 34 views

What is the corrosion potential of a zinc electrode in a galvanic couple with a copper electrode, given that the standard reduction potentials of the two half-reactions are +0.34V for Cu²⁺/Cu and -0.76V for Zn²⁺/Zn?

answered Feb 13 in ElectroChemistry

1 answer 43 views

How does excess phosphorus and nitrogen in water bodies contribute to eutrophication, and what are the potential negative effects on the aquatic ecosystem?

asked Feb 13 in Environmental Chemistry

1 answer 49 views

How do different chemical compositions and processing methods affect the optical properties of glasses used in optical applications, such as refractive index, dispersion, and transmission?

asked Feb 12 in Materials Chemistry

1 answer 20 views

How to design a system for the production of high-quality paints and coatings that are environmentally friendly and cost-efficient?

asked Feb 12 in Chemical engineering

1 answer 30 views

How can the magnetic properties of different materials be investigated and optimized for their use in data storage systems?

asked Feb 7 in Materials Chemistry

1 answer 44 views

How can molecular docking studies be used to design new drugs targeting COVID-19 proteins, and what key characteristics must the drug molecules possess to provide high binding affinity and specificity in the binding site of the target proteins?

asked Feb 5 in Computational Chemistry

1 answer 42 views

How can a chemist develop a process for the efficient production of 1,4-dioxane, a key intermediate in the production of polymers and solvents, using the principles of chemical engineering? Consider factors such as reaction conditions, catalyst selection, and process optimization to maximize yield and minimize waste.

answered Feb 4 in Chemical engineering

1 answer 34 views

Calculate the standard enthalpy change of the following chemical reaction at 298 K given the following bond energies: 2H2(g) + O2(g) --> 2H2O(l) Bond energies: H-H: 432 kJ/mol O=O: 498 kJ/mol O-H: 464 kJ/mol

answered Feb 3 in Physical Chemistry

Recent activity by GeraldoSuffo

Categories