Recent activity by LeoOverby677

1 answer 56 views

What is the relationship between the molecular structure and the phase behavior of liquid crystal compounds? Provide concrete examples of liquid crystal compounds and how their molecular structure affects their phase behavior.

answered Feb 24 in Physical Chemistry

1 answer 24 views

How does the presence of toxic heavy metal ions like lead or mercury in water affect the survival and reproduction of different species of aquatic organisms, and what are the underlying chemical mechanisms responsible for the observed effects?

answered Feb 22 in Environmental Chemistry

1 answer 33 views

What is the effect of changing the concentration of reactants on the rate of a reaction with a multi-step mechanism, and how does this compare to the effect on the rate of a reaction with a single-step mechanism?

asked Feb 19 in Chemical kinetics

1 answer 29 views

How does the coordination geometry of a transition metal complex affect its electronic and magnetic properties?

answered Feb 19 in Quantum Chemistry

1 answer 32 views

What concentration of lead (Pb) is considered toxic to aquatic organisms in freshwater ecosystems, and what are the factors that influence the bioavailability of lead in these systems?

asked Feb 19 in Environmental Chemistry

1 answer 33 views

How does temperature affect the rate of enzyme-catalyzed reactions?

answered Feb 17 in BioChemistry

1 answer 37 views

What is the difference between primary, secondary, and tertiary amines? Give an example of each type and explain how their properties and reactivity differ. Compare and contrast the properties and reactivity of a primary amine and its corresponding amide.

asked Feb 14 in Organic Chemistry

1 answer 38 views

What is the difference between primary, secondary, and tertiary alcohols and how does their chemical reactivity differ? Illustrate your answer with suitable examples.

answered Feb 14 in Organic Chemistry

1 answer 38 views

How can we predict and determine the crystallographic structure of inorganic solids based on their chemical composition and bonding properties?

answered Feb 14 in Inorganic Chemistry

1 answer 35 views

What are the structural features of molecules that make them effective in treating respiratory diseases, and how can these features be optimized through chemical synthesis and modification?

asked Feb 13 in Medicinal Chemistry

1 answer 58 views

What is the oxidation state of sulfur in the compound SO3?

asked Feb 13 in ElectroChemistry

1 answer 62 views

How to design a feasible and economical system that produces pure hydrogen fuel with a high yield while minimizing energy consumption, by utilizing the principles of chemical engineering and taking into account the potential impact on the environment?

answered Feb 12 in Chemical engineering

1 answer 63 views

How does the coordination chemistry influence the function and activity of metalloproteins and enzymes? Provide an example of a metalloprotein or enzyme and explain its coordination chemistry and how it affects its activity.

asked Feb 12 in Coordination Chemistry

1 answer 78 views

How can we control the molecular weight of a polymer synthesized through free radical polymerization?

asked Feb 12 in Organic Chemistry

1 answer 71 views

How can the synthesis of polypropylene from propylene monomer be optimized to increase the yield and ensure sustainability?

asked Feb 11 in Chemical synthesis

1 answer 128 views

Given a sample of mesoporous silica with a surface area of 500 m²/g, an amount of physisorbed nitrogen of 4.2 µmol/g, and assuming a monolayer coverage of 16.2 µmol/m², calculate the BET surface area of the silica.

answered Feb 4 in Surface Chemistry

1 answer 86 views

How does changing the ligands of a coordination compound affect its photochemical properties? Provide three specific examples with explanations.

asked Feb 3 in PhotoChemistry

1 answer 79 views

What is the dipole moment of carbon dioxide (CO2) molecule?

answered Jan 31 in Chemical bonding

1 answer 96 views

What alternative resources or methods can be used by a chemistry student to supplement their learning and understanding of the subject, especially in light of limited availability of textbooks and resources?

asked Jan 30 in Chemical education

1 answer 102 views

What is the concentration of copper ions (Cu2+) in a sample solution if the absorbance of the solution at a wavelength of 550 nm is 0.45 and the path length of the sample cell is 1 cm? Given that the molar absorptivity of Cu2+ at this wavelength is 1.5 × 10^4 L mol^-1 cm^-1.

answered Jan 30 in Analytical Chemistry

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