Recent activity by Phillipp57B1

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What is the most effective type and concentration of catalyst to use in the production of adhesives, and how does it affect the overall quality of the final product?

answered 3 days ago in Chemical engineering

1 answer 25 views

How does the molecular structure of a drug affect its pharmacodynamics in the body and what strategies can be used to improve the drug's effectiveness and minimize its side effects?

asked 4 days ago in Medicinal Chemistry

1 answer 20 views

What is the mechanism of the Friedel-Crafts acylation reaction and how does it differ from the Friedel-Crafts alkylation reaction when synthesizing aromatic compounds? Provide an example of each reaction and explain their selectivities.

answered 5 days ago in Organic Chemistry

1 answer 23 views

How does the excitation wavelength affect the emission intensity and lifetime of a commonly used fluorescent dye such as fluorescein?

asked 5 days ago in PhotoChemistry

1 answer 25 views

What is the effect of different monomer ratios on the degradation rate of PLA-PHB copolymer synthesized via solution polymerization?

asked 5 days ago in Polymer Chemistry

1 answer 31 views

How does the chemical structure of a drug affect its mechanism of action in the body, and what factors can influence the pharmacokinetics and pharmacodynamics of the drug?

answered 6 days ago in Medicinal Chemistry

1 answer 36 views

How can we reduce the carbon footprint of an industrial process while maintaining its efficiency and productivity? Provide specific strategies and examples of their implementation in industry.

asked Feb 14 in Environmental Chemistry

1 answer 26 views

What is the molecular structure of pyridine and how does its electron density distribution affect its chemical reactivity and properties as a heterocyclic compound?

answered Feb 14 in Organic Chemistry

1 answer 28 views

How do POPs affect the food web and what are the potential risks of consuming contaminated organisms?

asked Feb 14 in Environmental Chemistry

1 answer 33 views

What is the effect of increasing the concentration of reactants on the reaction rate and equilibrium of a chemical reaction?

answered Feb 13 in Chemical kinetics

1 answer 28 views

What is the effect of changing the nature of the incoming ligand on the rate of ligand substitution reactions in Coordination Chemistry? Provide a detailed analysis by comparing and contrasting the reaction rates for different types of ligands.

asked Feb 13 in Coordination Chemistry

1 answer 30 views

How does changing the concentration of reactants affect the rate of a second-order reaction? Provide an experimental design to determine the reaction order and rate constant for a given chemical reaction.

answered Feb 13 in Chemical kinetics

1 answer 10 views

How can we design drugs that specifically target the protein structure of the SARS-CoV-2 virus to inhibit its replication and prevent the spread of COVID-19?

asked Feb 12 in Medicinal Chemistry

1 answer 38 views

How can the properties of the resulting polyurethane be optimized by altering the amount and type of diisocyanate and polyol used in the synthesis process?

answered Feb 10 in Chemical synthesis

1 answer 38 views

Calculate the standard enthalpy change for the precipitation reaction of solid silver chloride (AgCl) from the aqueous solution with the precipitation agent, hydrochloric acid (HCl). Given the molar enthalpies of formation of AgCl(s) and HCl(g) are -127.01 kJ/mol and -92.31 kJ/mol, respectively. The balanced equation for the reaction is: AgNO3(aq) + HCl(aq) → AgCl(s) + HNO3(aq)

answered Feb 3 in Chemical thermodynamics

1 answer 69 views

How do the photochemical properties of bioluminescent organisms differ from those of non-bioluminescent organisms?

asked Jan 31 in PhotoChemistry

1 answer 60 views

A chemist analyzed a sample of unknown substance and found that it contains 55% carbon, 9.17% of hydrogen and the rest of the mass is oxygen. What is the percentage by mass of oxygen in the sample?

answered Jan 22 in Analytical Chemistry

1 answer 90 views

Why do researchers use regression analysis?

asked Jan 20 in Psychology

1 answer 37 views

What is the role of psychology in addressing social erasure?

asked Jan 20 in Psychology

1 answer 51 views

How does evolutionary theory explain gender differences in mate selection?

answered Jan 20 in Psychology

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