Recent activity by MargieJobson

1 answer 27 views

What is the quantum yield of a photochemical reaction in which 50% of the absorbed photons lead to the formation of the product? How does it differ from the quantum efficiency of the reaction and how can it be experimentally determined?

asked Feb 22 in Physical Chemistry

1 answer 37 views

How does the presence of specific ligands affect the photochemical properties of transition metal complexes and what are the underlying mechanisms that result in different photochemical behaviors?

answered Feb 22 in PhotoChemistry

1 answer 36 views

How do the photochemical properties of different sunscreen agents affect their effectiveness in protecting against UV radiation?

answered Feb 22 in PhotoChemistry

1 answer 28 views

Identify all the possible resonance structures of the nitrate ion (NO3-) and explain how they contribute to the overall electronic structure of the molecule.

answered Feb 21 in Chemical bonding

1 answer 39 views

How has the historical evolution of chemistry led to the current state of chemical education, and what can be done to better integrate this vital aspect of the field into modern teaching practices?

answered Feb 20 in Chemical education

1 answer 28 views

How does the electronic configuration and size of lanthanides and actinides affect their coordination chemistry behavior? Provide specific examples to illustrate your answer.

answered Feb 20 in Coordination Chemistry

1 answer 31 views

What is the effect of varying temperature on the lateral diffusion of lipids in a lipid bilayer as observed through molecular dynamics simulations?

answered Feb 20 in Computational Chemistry

1 answer 27 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their catalytic activity? Provide examples of metalloenzymes and metalloproteins and explain how their coordination environment affects their function.

asked Feb 19 in Coordination Chemistry

1 answer 37 views

How does the concentration of heavy metals in water affect the growth rate of aquatic plants, and what is the threshold concentration of these metals that is toxic to the plants?

answered Feb 19 in Environmental Chemistry

1 answer 51 views

How do surface chemistry principles affect the taste and quality of tea during its processing?

asked Feb 14 in Surface Chemistry

1 answer 35 views

How does the existing drug Sildenafil (Viagra) work on a molecular level to treat erectile dysfunction?

asked Feb 14 in Medicinal Chemistry

1 answer 30 views

How does the metabolic pathway of nitrogen assimilation differ in plants and bacteria? Compare the process and the enzymes involved in both organisms.

asked Feb 14 in BioChemistry

1 answer 58 views

What are the roles and mechanisms of lipid-derived mediators in inflammation and immune responses? How do alterations in lipid metabolism contribute to the pathogenesis of metabolic diseases such as obesity and type 2 diabetes?

asked Feb 13 in BioChemistry

1 answer 65 views

How can the synthesis of metal-organic frameworks be optimized to achieve high yield and purity while minimizing the use of toxic solvents and reducing the environmental impact?

asked Feb 11 in Materials Chemistry

1 answer 42 views

How can the structure of a virus be used to design drugs that target specific types of viruses, with a focus on preventing infections and reducing the severity of symptoms?

answered Feb 11 in Medicinal Chemistry

1 answer 30 views

How can the packaging of hazardous liquids be optimized for transportation without causing any harm to people or the environment?

asked Feb 10 in Chemical engineering

1 answer 36 views

How can computational methods be used to predict the properties of metal-organic frameworks, and what are the most promising applications of these materials in the field of catalysis?

answered Feb 6 in Computational Chemistry

1 answer 114 views

Determine the heat capacity of a 50-g sample of iron that is heated from 25°C to 100°C using 500 J of heat.

asked Feb 4 in Chemical thermodynamics

1 answer 80 views

How can we calculate the carbon footprint of an individual or a community and identify the major sources of greenhouse gas emissions? What are the possible ways to reduce the carbon footprint and mitigate the negative impact of human activities on the environment?

answered Jan 31 in Environmental Chemistry

1 answer 60 views

How can the concentration of lead (Pb) in a water sample be determined using cyclic voltammetry?

answered Jan 29 in Analytical Chemistry

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