Recent activity by NanVanwagene

1 answer 18 views

How does the rate of a photochemical reaction vary with changes in the polarity of the solvent used? Provide experimental evidence to support your answer.

answered 3 days ago in PhotoChemistry

1 answer 4 views

How does the presence of a double bond in an alkene molecule affect the outcome of an electrophilic addition reaction compared to an alkane molecule?

answered 3 days ago in Organic Chemistry

1 answer 18 views

How does the molecular weight of polyethylene glycol (PEG) affect the mechanical properties of a polymer blend used for biomedical applications?

answered 4 days ago in Materials Chemistry

1 answer 28 views

What is the molecular geometry of a molecule that has four bonding pairs and no lone pairs of electrons?

asked 5 days ago in Chemical bonding

1 answer 28 views

What is the effect of temperature on the rate of polymerization of vinyl monomers using a free radical mechanism? Provide a detailed explanation and include graphical representation of data obtained from experiments.

asked 6 days ago in Polymer Chemistry

1 answer 20 views

What is the effect of pressure on the rate of the reaction between hydrogen gas and iodine gas, and how can this effect be explained by collision theory?

asked 6 days ago in Chemical kinetics

1 answer 27 views

What is the effect of pH on the reaction rate of the hydrolysis of sucrose using invertase enzyme at 37°C?

asked 6 days ago in Chemical kinetics

1 answer 23 views

How does the degree of polymer crystallinity affect the mechanical properties of a polymer?

asked 6 days ago in Polymer Chemistry

1 answer 7 views

How does the chemical composition of glasses impact their optical properties and what factors must be considered when selecting glasses for use in specific optical applications (such as lenses, prisms or optical fibers)?

answered Feb 18 in Materials Chemistry

1 answer 29 views

How does the absorption of light by a molecule or material affect its electronic structure and subsequently its chemical and physical properties?

answered Feb 17 in Quantum Chemistry

1 answer 30 views

What are the differences in the photochemical properties of silver halide films and digital sensors, and how do these properties affect the quality and characteristics of the final photographic image produced?

answered Feb 14 in PhotoChemistry

1 answer 27 views

What are the different types of polymer-based packaging materials and how do they impact the environment differently in terms of their biodegradability and recycling potential?

answered Feb 14 in Polymer Chemistry

1 answer 36 views

How does the inadequate training of chemistry teachers affect the overall academic performance of students in chemistry classes?

answered Feb 13 in Chemical education

1 answer 37 views

How can the structure of existing antibiotics be modified to enhance their efficacy against drug-resistant bacteria while minimizing toxicity to human cells?

asked Feb 11 in Medicinal Chemistry

1 answer 40 views

How can the integration of environmental chemistry into the existing curriculum of a chemistry syllabus enhance students' understanding of the impact of chemical reactions on the environment and promote responsible use of chemicals in their future careers?

answered Feb 7 in Chemical education

1 answer 31 views

How can the environmental impact of a proposed industrial project be assessed and minimized using chemical principles and techniques?

asked Feb 7 in Environmental Chemistry

1 answer 32 views

How can the efficiency of the surfactant production process be improved by optimizing the operating parameters such as temperature, pH, and concentration of reactants in a designed production system?

answered Feb 7 in Chemical engineering

1 answer 36 views

How can the coordination number of a metal ion in a coordination compound be determined using UV-Vis spectroscopy?

asked Feb 6 in Coordination Chemistry

1 answer 35 views

How can chemistry students organize fundraisers and outreach programs to increase awareness and generate sufficient funding for chemistry education in their local schools and communities?

asked Feb 5 in Chemical education

1 answer 32 views

How can chemistry students in developing countries access adequate learning resources and textbooks, despite the limited availability of such materials in their communities?

asked Feb 5 in Chemical education

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