Recent activity by AstridMusser

1 answer 28 views

How does the size and shape of a molecule affect its ability to form supramolecular structures, and how can computational methods be used to predict and study these structures?

asked Feb 24 in Computational Chemistry

1 answer 33 views

How does the rate of photochemical reactions vary with different levels of light intensity, and what factors determine the efficiency of the reaction under different light conditions?

asked Feb 22 in PhotoChemistry

1 answer 26 views

What is the effect of pH on the concentration of heavy metals in landfill leachate and how does this impact the quality of groundwater in the surrounding area?

answered Feb 22 in Environmental Chemistry

1 answer 31 views

How to optimize the production of biofuels by selecting the most effective catalysts and reaction conditions using experimental design principles in chemical engineering?

answered Feb 14 in Chemical engineering

1 answer 88 views

How can the process for the production of a specific drug be optimized to decrease the reaction time and increase the yield of the product, while maintaining the desired purity and quality of the pharmaceutical drug?

answered Feb 10 in Chemical engineering

1 answer 43 views

How can the effect of reaction rate on reaction safety be investigated for a specific chemical reaction?

answered Feb 7 in Chemical kinetics

1 answer 34 views

How can computational chemistry be used for molecular docking studies to identify potential drug candidates that bind to a target receptor with high affinity and specificity?

answered Feb 5 in Computational Chemistry

1 answer 35 views

How can chemistry students overcome the limited availability of chemistry-related internships and job opportunities?

asked Feb 5 in Chemical education

1 answer 77 views

Calculate the standard Gibbs free energy change (ΔG°) for the reaction below at 298 K:2NO(g) + O2(g) → 2NO2(g)Given:ΔG°f(NO2(g)) = -51.29 kJ/molΔG°f(NO(g)) = 86.67 kJ/molΔG°f(O2(g)) = 0 kJ/mol

answered Feb 3 in Physical Chemistry

1 answer 56 views

Calculate the standard enthalpy of formation (ΔH°f) of methane (CH4) given the following data: 2H2(g) + O2(g) → 2H2O(l) ΔH°rxn = -572 kJ/mol C(graphite) + O2(g) → CO2(g) ΔH°rxn = -394 kJ/mol Note: The enthalpy of formation of an element in its standard state is zero (0).

asked Feb 3 in ThermoChemistry

1 answer 51 views

How does changing the pH of a solution affect the equilibrium position of an acid-base reaction when starting with HF (hydrofluoric acid) and NaOH (sodium hydroxide)?

answered Feb 3 in Chemical equilibrium

1 answer 108 views

How do changes in environmental conditions affect the metabolic pathways and molecular networks involved in cellular metabolism? Provide examples using metabolomics and systems biology approaches.

asked Jan 31 in BioChemistry

1 answer 93 views

What drug delivery system can be optimized for the oral delivery of an anti-cancer drug to enhance its efficacy and minimize side effects? Specifically, what type of nanoparticle drug delivery system can be designed and synthesized to effectively deliver the drug to the target site while maintaining therapeutic efficacy and minimizing toxicity?

asked Jan 30 in Medicinal Chemistry

1 answer 106 views

How can we use an ion-selective electrode to determine the concentration of chloride ions in a given solution?

asked Jan 30 in Analytical Chemistry

1 answer 70 views

How can the concentration of an unknown substance in a given sample be determined using polarography and what factors affect the accuracy of the method?

answered Jan 29 in Analytical Chemistry

1 answer 74 views

How can the concentration of a specific substance in a sample be determined using colorimetry? Provide a detailed stepwise procedure for the same and explain the underlying principle behind it.

answered Jan 29 in Analytical Chemistry

1 answer 69 views

Calculate the heat of crystallization of 5 moles of calcium chloride, given that the enthalpy change of hydration of calcium ions is –1622 kJ/mol and that of chloride ions is –364 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 88 views

Calculate the enthalpy change when 50 ml of 0.2 M sodium chloride solution is mixed with 50 ml of 0.1 M silver nitrate solution. Given the enthalpy of precipitation of silver chloride as -64.8 kJ/mol.

asked Jan 23 in ThermoChemistry

1 answer 85 views

Calculate the electrical double layer thickness of a silica particle with a radius of 50 nm, assuming the particle is in water at room temperature and has a surface charge density of -0.05 C/m².

asked Jan 23 in Physical Chemistry

1 answer 52 views

Please compare Erikson's theory versus John Dewey's theory of experiential education.

answered Jan 20 in Psychology

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