Recent activity by OctavioCarva

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How does the size and shape of a molecule or nanoscale system affect its electrical conductivity, and what are the quantum mechanical principles governing this behavior?

answered 1 day ago in Quantum Chemistry

1 answer 22 views

What conditions are necessary for the selective oxidation of methane on a metal surface to produce formaldehyde, and how does the presence of different metals affect the selectivity and activity of the reaction?

asked 1 day ago in Surface Chemistry

1 answer 27 views

How does the polarity of the solvent affect the rate of a chemical reaction?

asked 3 days ago in Chemical kinetics

1 answer 3 views

What is the most effective method for designing a sustainable and efficient system for the production of cosmetics using chemical engineering principles?

asked 4 days ago in Chemical engineering

1 answer 26 views

What is the effect of temperature on the phase transition of liquid crystals?

answered 5 days ago in Physical Chemistry

1 answer 18 views

What is the effect of changing the concentration of an inorganic compound on its conductivity?

asked 6 days ago in Inorganic Chemistry

1 answer 7 views

What spectroscopic technique is best suited for studying the electronic transitions in transition metal coordination compounds containing a ligand with significant pi-donation properties, such as an ethylenediamine or a bipyridine ligand?

asked Feb 17 in Coordination Chemistry

1 answer 27 views

How can we use size-exclusion chromatography for determining the molecular weight distribution of polymers?

asked Feb 14 in Polymer Chemistry

1 answer 41 views

How many geometric isomers are possible for the coordination compound [Co(NH3)4Cl2]+?

asked Feb 13 in Coordination Chemistry

1 answer 29 views

What are the differences between gel permeation chromatography and size exclusion chromatography, and how can these techniques be used to characterize polymers with different molecular weights and distributions?

asked Feb 13 in Polymer Chemistry

1 answer 32 views

What is the electronic structure and bond order of the Fe(CO)5 molecule, and how does it relate to its observed vibrational modes and infrared spectrum?

asked Feb 13 in Computational Chemistry

1 answer 38 views

What is the coordination geometry and oxidation state of the metal ion in the active site of cytochrome c oxidase, an important metalloenzyme involved in the respiratory process of living organisms?

asked Feb 12 in Coordination Chemistry

1 answer 38 views

How can the production process of paints and coatings be optimized to minimize the amount of waste generated without compromising the quality of the final product?

answered Feb 10 in Chemical engineering

1 answer 30 views

How can the lack of emphasis on safety protocols in chemistry labs affect the physical and mental well-being of students, and what can be done to address and prevent any potential hazards?

asked Feb 7 in Chemical education

1 answer 34 views

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

answered Feb 7 in Polymer Chemistry

1 answer 45 views

Given a reaction with the following data, calculate the rate constant (k) of the reaction:2 A + 3 B → CAt a particular temperature, the initial concentration of A was 0.2 M and the initial concentration of B was 0.5 M. After 30 minutes, the concentration of A decreased to 0.1 M while the concentration of B decreased to 0.3 M. The reaction is second order with respect to A and first order with respect to B.

answered Feb 4 in Chemical kinetics

1 answer 83 views

What strategies can a chemistry student utilize to comprehend and master complex chemical concepts effectively?

asked Jan 30 in Chemical education

1 answer 72 views

Identify the structure of an unknown compound with a mass-to-charge ratio (m/z) of 112 using mass spectrometry. What is the molecular formula of the compound based on the information obtained from the mass spectrum?

asked Jan 30 in Analytical Chemistry

1 answer 53 views

Calculate the equilibrium constant (K$\textsubscript{a}$) for the reaction of acetic acid in aqueous solution if the pH of the solution is 4.76 and the concentration of acetic acid is 0.1 M.

asked Jan 23 in Chemical equilibrium

1 answer 62 views

A student has a sample of an unknown inorganic compound that contains only carbon, oxygen, and nitrogen. They perform a combustion analysis on a 0.230 g sample of the compound, which yields 0.535 g of CO2 and 0.184 g of H2O. Additionally, when the compound is analyzed using a mass spectrometer, the mass spectrum shows a molecular ion peak at m/z = 42. Determine the empirical and molecular formulas of this compound.

asked Jan 22 in Inorganic Chemistry

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