Recent activity by StephanieLeF

1 answer 30 views

How does the size and shape of a solid catalyst affect the rate of a catalytic reaction? Provide experimental evidence to support your answer.

asked Feb 24 in Surface Chemistry

1 answer 32 views

How does the presence of chlorofluorocarbons (CFCs) in the atmosphere contribute to the depletion of ozone, and what are the potential consequences of this depletion on the environment and human health?

answered Feb 22 in Environmental Chemistry

1 answer 30 views

How does the presence of a catalyst affect the rate of the reaction between hydrogen peroxide and potassium iodide, and what is the significance of this result in practical applications?

asked Feb 22 in Chemical kinetics

1 answer 27 views

What is the most efficient method for synthesizing polyvinyl chloride from vinyl chloride monomer at a large scale?

answered Feb 21 in Chemical synthesis

1 answer 35 views

How does the molecular structure of a conductive polymer affect its conductivity and mechanical properties, and how can this knowledge be used to design more efficient and durable flexible electronic devices?

answered Feb 21 in Materials Chemistry

1 answer 27 views

How does the metabolic state of cancer cells differ from that of normal cells, and how can metabolomics and systems biology be used to develop targeted therapies for cancer treatment?

asked Feb 20 in BioChemistry

1 answer 42 views

How does the Langmuir adsorption isotherm relate to the adsorption of a gas onto a solid surface? Illustrate your answer with a diagram and calculate the monolayer capacity of the solid from the given data using Langmuir's equation.

answered Feb 20 in Surface Chemistry

1 answer 36 views

What is the effect of changing the concentration of reactants on the reaction rate and sustainability in the decomposition of hydrogen peroxide catalyzed by potassium iodide?

asked Feb 19 in Chemical kinetics

1 answer 26 views

What is the coordination number of the complex formed between Ni2+ and ethylenediamine (en)? What is the structure of the complex and is it likely to be tetrahedral or octahedral?

answered Feb 19 in Coordination Chemistry

1 answer 68 views

How does light intensity affect the rate of photochemical reactions in the process of photosynthesis?

answered Feb 13 in PhotoChemistry

1 answer 63 views

How does insulin influence the synthesis and breakdown of glycogen in the liver, and what regulatory enzymes are involved in this process?

asked Feb 13 in BioChemistry

1 answer 48 views

How does inadequate training for chemistry teachers affect students' understanding and performance in chemistry, and what can be done to address this issue?

asked Feb 13 in Chemical education

1 answer 72 views

What is the concentration of potassium ions in a 0.1 M solution of potassium chloride using a potassium ion-selective electrode?

answered Feb 13 in Analytical Chemistry

1 answer 62 views

How can the yield of biofuels be improved through the optimization of reaction conditions in the biofuel production process?

answered Feb 13 in Chemical engineering

1 answer 70 views

How can the synthesis of metal nanoparticles be optimized to achieve a specific shape and size distribution, and what factors affect the morphology and stability of the nanoparticles synthesized?

asked Feb 11 in Materials Chemistry

1 answer 34 views

How can the levels of POPs be reduced in the environment? Investigate and propose a feasible solution for controlling persistent organic pollutants in soil and bodies of water.

asked Feb 7 in Environmental Chemistry

1 answer 38 views

How can Dynamic Mechanical Analysis (DMA) be used to determine the glass transition temperature of a polymer? Provide a step-by-step explanation of the DMA technique and its application to polymer characterization.

asked Feb 5 in Polymer Chemistry

1 answer 39 views

How can computational chemistry and molecular modeling be used to predict the potential energy surface for a chemical reaction and determine the corresponding reaction mechanism?

asked Feb 5 in Physical Chemistry

1 answer 36 views

How can nanoparticles be used in the remediation of soil contaminated with heavy metals and organic pollutants, and what are the potential risks associated with their use?

answered Feb 5 in Environmental Chemistry

1 answer 36 views

How can Fourier-transform infrared spectroscopy (FTIR) be used to characterize the chemical structure of polymers? Provide an example of a specific polymer and discuss the relevant spectral features that would be observed in an FTIR spectrum.

answered Feb 5 in Polymer Chemistry

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