Recent activity by KenOlvera57

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How does the size and shape of nanomaterials affect their electronic and optical properties, and can quantum chemical calculations be used to predict and optimize these properties for specific applications?

answered Feb 24 in Quantum Chemistry

1 answer 27 views

How does the shape and size of a gold nanoparticle influence its stability and reactivity in a molecular dynamic simulation?

answered Feb 24 in Computational Chemistry

1 answer 32 views

What is the optimum reaction conditions (temperature and time) for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas while maintaining high yield and purity?

asked Feb 22 in Chemical synthesis

1 answer 32 views

What is the mechanism for the nucleophilic substitution reaction of 2-bromobutane with sodium hydroxide in ethanol?

asked Feb 21 in Organic Chemistry

1 answer 35 views

What is the metal ion at the active site of the enzyme carbonic anhydrase, and how does it facilitate the conversion of carbon dioxide into bicarbonate?

asked Feb 20 in Coordination Chemistry

1 answer 28 views

How does quantum coherence and entanglement affect the properties and behavior of molecular and nanoscale systems, and how can it be utilized in the design and engineering of new materials with desirable properties?

asked Feb 14 in Quantum Chemistry

1 answer 45 views

How does pH affect the formation and stability of protein-protein interactions and complexes in the human body? Specifically, investigate the impact of pH on the interaction between enzyme and substrate molecules in enzymatic reactions.

answered Feb 14 in BioChemistry

1 answer 57 views

What are the specific intermolecular forces present in water and how do they affect the boiling point of the substance?

answered Feb 13 in Chemical bonding

1 answer 92 views

How can the yield of polyacrylonitrile be improved during its synthesis process from acrylonitrile monomer?

asked Feb 13 in Chemical synthesis

1 answer 39 views

What are the key molecular targets for developing new treatments for hypertension and what are the different strategies that medicinal chemists can use to design effective drugs that target these molecular targets?

answered Feb 13 in Medicinal Chemistry

1 answer 37 views

How can we design a drug that can correct the mutations and genetic abnormalities in patients suffering from cystic fibrosis?

asked Feb 12 in Medicinal Chemistry

1 answer 53 views

How does controlling the pH of the solution affect the adsorption of proteins on solid surfaces?

answered Feb 12 in Surface Chemistry

1 answer 100 views

How can the structure and composition of drug delivery systems be optimized to improve efficacy and decrease potential side effects?

asked Feb 10 in Medicinal Chemistry

1 answer 31 views

How can the excess nitrogen and phosphorus pollution in a water body be assessed and controlled to improve the water quality for human and aquatic life?

asked Feb 7 in Environmental Chemistry

1 answer 34 views

How can the conductivity of polymer electrolytes be enhanced for use in batteries?

answered Feb 6 in Polymer Chemistry

1 answer 38 views

How can chemistry educational institutions prioritize the implementation and reinforcement of safety protocols within their laboratories to reduce the incidence of accidents and ensure the safety of students, faculty, and staff?

asked Feb 4 in Chemical education

1 answer 63 views

Design a heat exchanger that can effectively transfer heat between a hot stream of ethanol with a flow rate of 2 kg/s and a cold stream of water with a flow rate of 5 kg/s. The inlet temperature of ethanol is 80°C, while the inlet temperature of water is 20°C. The outlet temperature of ethanol should be 30°C, while the outlet temperature of water should not exceed 35°C. The heat exchanger should have a heat transfer coefficient of at least 500 W/m^2K and a total surface area of no more than 10 m^2.

asked Feb 4 in Chemical engineering

1 answer 63 views

Calculate the standard electrode potential for the reaction: Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) Given that the standard electrode potentials for the half-reactions are: Zn2+(aq) + 2e- → Zn(s) Etheta = -0.76 V Cu2+(aq) + 2e- → Cu(s) Etheta = 0.34 V

answered Feb 3 in ElectroChemistry

1 answer 144 views

How do changes in surface properties of food contact materials, such as metals or polymers, affect the adhesion and removal of microorganisms during food and beverage processing?

answered Jan 31 in Surface Chemistry

1 answer 52 views

How does the chemical structure of aspirin contribute to its pharmacodynamics in the body?

answered Jan 31 in Medicinal Chemistry

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