Recent activity by TeshaPennell

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How does the reaction rate affect the selectivity of a chemical reaction, and how can this knowledge be applied to optimize selectivity in industrial chemical processes?

asked 3 days ago in Chemical kinetics

1 answer 16 views

What is the effect of different wavelengths of light on the reaction rate between potassium permanganate and oxalic acid?

answered 3 days ago in Chemical kinetics

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What is the most effective polymerization method for synthesizing high-quality polystyrene from styrene monomer, and what factors need to be considered to optimize it?

asked 4 days ago in Chemical synthesis

1 answer 18 views

How do the magnetic properties (i.e. coercivity, remanence, and hysteresis) of different materials (e.g. iron oxide, cobalt, nickel) affect their suitability for use in data storage?

asked 4 days ago in Materials Chemistry

1 answer 18 views

What is the efficiency of activated carbon in removing a specific pollutant from water under varying conditions such as temperature, pH, and contact time?

answered 5 days ago in Surface Chemistry

1 answer 19 views

What are the regulatory mechanisms involved in the degradation of glycogen during fasting or exercise? How do these mechanisms differ from those involved in the synthesis of glycogen during the fed state?

answered 6 days ago in BioChemistry

1 answer 24 views

How does the coordination chemistry of iron in hemoglobin affect its ability to bind oxygen and transport it throughout the body?

answered 6 days ago in Coordination Chemistry

1 answer 23 views

How many ATP molecules can be produced by the complete oxidation of one molecule of glucose through the Citric Acid Cycle and Oxidative Phosphorylation?

answered 6 days ago in BioChemistry

1 answer 28 views

What is the effect of the central metal ion on the electronic and optical properties of metalloporphyrins and metallophthalocyanines?

answered Feb 18 in Coordination Chemistry

1 answer 44 views

What is the role of metal ions in the catalytic activities of metalloenzymes and metalloproteins? Provide at least two examples of metalloenzymes and metalloproteins and explain their functions in terms of their coordination chemistry.

asked Feb 13 in Coordination Chemistry

1 answer 28 views

What is the percentage composition of copper (Cu), iron (Fe), and sulfur (S) in a sample of pyrite? Use elemental analysis to determine the amount of each element present in the sample and calculate the percentage composition by mass.

answered Feb 13 in Analytical Chemistry

1 answer 32 views

What are the type of hybrid orbitals present in the molecule ethene (C2H4) and what is the bond angle between the carbon atoms?

answered Feb 13 in Chemical bonding

1 answer 35 views

What type of bond exists between a carbon atom (C) and an oxygen atom (O) in a carbon dioxide (CO2) molecule?

asked Feb 13 in Chemical bonding

1 answer 57 views

How does the conversion of light energy into chemical energy occur during the process of photosynthesis and what is the role of carbon fixation in this process?

asked Feb 13 in BioChemistry

1 answer 40 views

What is the role of disulfide bridges in determining the structure and function of proteins, particularly enzymes? How do variations in the number and placement of disulfide bonds affect enzymatic activity?

asked Feb 12 in BioChemistry

1 answer 49 views

How can we develop a method for the synthesis of nanoparticles that allows for precise control over their size, shape, and composition to optimize their properties for specific applications in catalysis, optics, or medicine?

asked Feb 12 in Materials Chemistry

1 answer 35 views

How can the efficiency of solar cells be improved by synthesizing and characterizing new materials with better absorption and charge transport properties?

asked Feb 7 in Materials Chemistry

1 answer 32 views

How can metabolomics and systems biology be used to determine the effect of a specific drug on the metabolic pathways of a cell?

asked Feb 5 in BioChemistry

1 answer 36 views

How can medicinal chemists modify existing antibiotics to create new compounds that are effective against drug-resistant bacteria strains, specifically targeting the mechanisms that these bacteria use to resist traditional antibiotics?

answered Feb 5 in Medicinal Chemistry

1 answer 43 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.

answered Feb 5 in Polymer Chemistry

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