Recent activity by FranklinPeel

1 answer 25 views

How do the size and shape of nanoparticles affect their catalytic activity in a specific chemical reaction?

asked 3 days ago in Materials Chemistry

1 answer 28 views

How does the release of chlorofluorocarbons (CFCs) contribute to the depletion of the ozone layer and what are the potential consequences of increased UV radiation exposure on the ecosystem and human health?

answered 3 days ago in Environmental Chemistry

1 answer 14 views

What is the optimal reaction conditions (temperature, pressure, and concentration) for the preparation of phenylalanine from benzyl chloride and ammonia, and how do these conditions affect the yield and purity of the final product?

asked 5 days ago in Chemical synthesis

1 answer 31 views

What is the mechanism behind the corrosion of iron and how does passivation effect its corrosion rate?

answered Feb 19 in Surface Chemistry

1 answer 35 views

How does the activation energy of a chemical reaction affect its rate and mechanism, and how can quantum chemistry help in predicting and understanding these factors?

asked Feb 17 in Quantum Chemistry

1 answer 32 views

How can we predict the magnetic properties of molecular magnets through quantum chemistry calculations and what factors influence the magnetic behavior of these molecules?

answered Feb 14 in Quantum Chemistry

1 answer 31 views

What is the role of hydrogen bonds in maintaining the double helix structure of DNA? How many hydrogen bonds are formed between adenine and thymine base pairs compared to guanine and cytosine base pairs?

asked Feb 13 in BioChemistry

1 answer 30 views

What is the role of chaperones in protein folding, and how do they assist in the correct folding of proteins?

answered Feb 12 in BioChemistry

1 answer 44 views

How can the synthesis and characterization of new materials be optimized to effectively remove heavy metal ions from contaminated water sources?

answered Feb 11 in Materials Chemistry

1 answer 80 views

What is the percentage of nitrogen, carbon, and hydrogen in a sample of caffeine obtained from coffee beans? Use elemental analysis to determine the composition of the sample.

answered Jan 31 in Analytical Chemistry

1 answer 70 views

How do bacteria convert atmospheric nitrogen gas into organic nitrogen molecules like amino acids? What role do enzymes such as nitrogenase and reductase play in this process?

asked Jan 31 in BioChemistry

1 answer 67 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?

answered Jan 30 in Analytical Chemistry

1 answer 58 views

Calculate the enthalpy change of the following reaction: 2C(s) + 2H2(g) + 5O2(g) -> 2CO2(g) + 2H2O(l) Given the enthalpies of formation of CO2(g), H2O(l), and H2(g) are -393.5 kJ/mol, -285.8 kJ/mol, and -241.8 kJ/mol, respectively.

answered Jan 23 in ThermoChemistry

1 answer 70 views

Calculate the enthalpy change for the ionization of magnesium using the following information: - The first ionization energy of magnesium is 738 kJ/mol. - The second ionization energy of magnesium is 1450 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 96 views

Calculate the enthalpy change for the dissolution of 5.00 g of potassium chloride (KCl) in 100 mL of water. Given that the specific heat capacity of the resulting solution is 4.18 J/g°C, and its temperature increases from 25.0°C to 30.0°C. The molar mass of KCl is 74.55 g/mol, and the enthalpy of hydration of K+ and Cl- ions is -716 and -364 kJ/mol, respectively.

answered Jan 23 in ThermoChemistry

1 answer 77 views

Identify the expected product and reaction conditions when propene oxide is reacted with HI in the presence of red phosphorus as a catalyst.

asked Jan 21 in Organic Chemistry

1 answer 34 views

Who introduced the Dual-Process Motivational Model?

asked Jan 20 in Psychology

1 answer 29 views

What is transference in psychodynamic therapy?

asked Jan 20 in Psychology

1 answer 50 views

When was the study on the effects of self-compassion on anxiety conducted?

answered Jan 20 in Psychology

1 answer 31 views

Compare and contrast the information-processing approach to cognitive development with Piaget's theory. Please evaluate which theory provides a more comprehensive explanation for cognitive development.

asked Jan 20 in Psychology

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