Recent activity by FrederickTho

1 answer 33 views

How do the photochemical properties of nanoparticles change in response to different light wavelengths?

1 answer 21 views

How does the photochemical behavior of enantiomers differ and what are the implications for their industrial and biological applications?

answered Feb 22 in PhotoChemistry

1 answer 33 views

What is the hybridization of the central carbon atom in the molecule CH4?

answered Feb 20 in Chemical bonding

1 answer 24 views

What is the effect of temperature on the surface tension of a solution containing a surfactant?

answered Feb 20 in Surface Chemistry

1 answer 31 views

How do the chemical structures and properties of polymer-based adhesives and sealants affect their bonding strength and durability, and which factors can be optimized to improve their performance?

asked Feb 18 in Polymer Chemistry

1 answer 33 views

What is the bond order of the nitrogen molecule (N2)?

asked Feb 18 in Chemical bonding

1 answer 34 views

What is the mechanism by which sunscreen agents protect human skin against the harmful effects of ultraviolet radiation, and how can their photochemical properties be optimized to enhance their effectiveness?

asked Feb 14 in PhotoChemistry

1 answer 36 views

How can we develop new treatments for gastrointestinal diseases by designing drugs that target the acid secretion pathway and reduce the harmful effects of excess stomach acid?

asked Feb 12 in Medicinal Chemistry

1 answer 32 views

What is the current density in an electrochemical cell where a current of 5 amperes is passed through a copper electrode with a surface area of 0.1 square meters for 10 minutes? The half-cell reaction is: Cu2+ + 2 e- -> Cu.

answered Feb 12 in ElectroChemistry

1 answer 37 views

How can the synthesis of polyvinyl alcohol from vinyl acetate monomer be optimized to increase the yield and purity of the final product, and what factors influence the properties of the resulting polymer?

asked Feb 11 in Chemical synthesis

1 answer 110 views

How can the synthesis of biodegradable polymers be optimized for maximum efficiency and minimum environmental impact?

asked Feb 11 in Polymer Chemistry

1 answer 74 views

How can the properties of liquid crystals be manipulated and optimized to improve the performance of display technology?

answered Feb 10 in Materials Chemistry

1 answer 43 views

How can chemistry students effectively learn and retain practical laboratory skills when faced with limited opportunities for hands-on experimentation due to a lack of resources in their learning environment?

asked Feb 4 in Chemical education

1 answer 47 views

How can chemistry students effectively communicate the importance and relevance of their subject to society and the economy?

answered Feb 4 in Chemical education

1 answer 91 views

Given the following equilibrium reaction: Fe3+(aq) + 4CN-(aq) <--> Fe(CN)64-(aq)If the equilibrium constant, Kc, is equal to 1.2 x 10^10 at 25°C, what will be the value of Kc at 50°C? And how will the equilibrium position shift when the temperature is changed from 25°C to 50°C?

answered Feb 4 in Chemical equilibrium

1 answer 77 views

Calculate the reaction quotient (Qc) for the chemical equation:2NO(g) + O2(g) ⇌ 2NO2(g)At a certain reaction conditions, the concentrations of NO, O2, and NO2 are 0.45 M, 0.25 M, and 0.60 M respectively. Determine if the reaction is at equilibrium and, if not, in which direction will it proceed to reach equilibrium.

answered Feb 3 in Chemical thermodynamics

1 answer 76 views

Calculate the pH of a solution with a concentration of 0.01 M HCl.

answered Feb 3 in Chemical reactions

1 answer 85 views

What is the concentration of a hydrochloric acid solution if 25 ml of the solution requires 18 ml of a 0.1 M sodium hydroxide solution for complete neutralization during a titration?

asked Jan 30 in Analytical Chemistry

1 answer 79 views

How can the concentration of lead in a soil sample be determined using atomic absorption spectroscopy and what measures can be taken to ensure accurate and precise results?

answered Jan 29 in Analytical Chemistry

1 answer 59 views

Who proposed the Strange Situation experiment?

answered Jan 20 in Psychology

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