Recent activity by CharlesAlcal

1 answer 27 views

What is the relationship between the size of nanoparticles and their electronic and optical properties, as determined by quantum calculations?

asked 2 days ago in Quantum Chemistry

1 answer 20 views

How does the Monte Carlo simulation method as applied to gas-phase reactions compare to other computational methods in predicting reaction rates and pathways?

asked 5 days ago in Computational Chemistry

1 answer 23 views

What is the effect of molecular weight on the mechanical strength of a polymer?

asked 5 days ago in Physical Chemistry

1 answer 30 views

What is the rate constant k for the decomposition of N2O5 (g) to NO2(g) and O2(g) at 250°C if the initial concentration of N2O5 is 0.10 M and the half-life for the reaction is 120 seconds?

asked Feb 19 in Physical Chemistry

1 answer 23 views

What is the coordination number and geometry of [Nd(H2O)8]3+ complex ion? Explain the factors that influence the stability of this complex ion in aqueous solutions.

answered Feb 19 in Coordination Chemistry

1 answer 28 views

How does the coordination geometry of transition metal ions in metalloenzymes and metalloproteins affect their catalytic activity?

answered Feb 19 in Coordination Chemistry

1 answer 43 views

How does the concentration of heavy metals in water affect the growth and survival of fish in aquatic ecosystems, and what are some methods of remediation that can be used to mitigate the negative impacts of water pollution on aquatic life?

asked Feb 19 in Environmental Chemistry

1 answer 27 views

What is the effect on the formation of the complex ion [Fe(H2O)6]3+ when the pH is changed from 2.0 to 3.5? Show calculations to support your answer.

answered Feb 18 in Chemical equilibrium

1 answer 31 views

What is the color of the copper(II) sulfate aqueous solution and the solid copper(II) sulfate pentahydrate (CuSO4·5H2O) and why do they exhibit these colors?

answered Feb 18 in Inorganic Chemistry

1 answer 24 views

What is the mechanism of the Beckmann rearrangement reaction and how does it convert a ketoxime to an amide? Illustrate with the help of a suitable example.

asked Feb 17 in Organic Chemistry

1 answer 33 views

How does surface modification of nanoparticles affect their stability in aqueous solutions?

asked Feb 17 in Surface Chemistry

1 answer 37 views

What is the effect of ligand substitution on the color and magnetic properties of coordination compounds? Provide an explanation and examples to illustrate your answer.

asked Feb 13 in Coordination Chemistry

1 answer 34 views

What is the effect of changing the concentration of one reactant on the rate of a first or zero order reaction, and how can this effect be determined experimentally using different techniques such as the initial rate method and integrated rate laws?

asked Feb 13 in Chemical kinetics

1 answer 30 views

What conditions are required for the successful synthesis of high molecular weight polypropylene using Ziegler-Natta catalysts from propylene monomer?

asked Feb 13 in Chemical synthesis

1 answer 49 views

How does the doping level and type of impurity affect the electrical conductivity and performance of silicon in semiconductors used in electronic devices?

asked Feb 12 in Materials Chemistry

1 answer 31 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their biological function? Provide specific examples to support your answer.

answered Feb 12 in Coordination Chemistry

1 answer 25 views

How can the principles of medicinal chemistry be applied to design new drugs that selectively target cancer cells while sparing healthy cells?

answered Feb 10 in Medicinal Chemistry

1 answer 34 views

How can the chemical structure of existing medications for gastrointestinal diseases be modified to increase their effectiveness and reduce their side effects?

answered Feb 6 in Medicinal Chemistry

1 answer 28 views

How can chemistry students gain practical experience in the field when the availability of chemistry-related internships and job opportunities is limited?

answered Feb 5 in Chemical education

1 answer 59 views

How can the concentration of copper in a given sample of water be determined using spectrophotometry?

asked Jan 29 in Analytical Chemistry

Categories