Recent activity by CheryleCass8

1 answer 26 views

What is the mechanism of the nucleophilic addition reaction of NaBH4 to benzaldehyde and acetone? Analyze the reaction products and explain the observed stereoselectivity.

answered 6 days ago in Organic Chemistry

1 answer 20 views

What is the mechanism of polymerization involved in the formation of polyethylene? Provide a detailed explanation of the process, including the reaction equation and the role of the catalyst.

answered Feb 20 in Organic Chemistry

1 answer 17 views

How does the concentration of reactants affect the reaction rate and sustainability of the reaction between hydrochloric acid and sodium thiosulphate?

asked Feb 19 in Chemical kinetics

1 answer 18 views

What factors affect the prediction of chemical reactivity and selectivity in certain reaction pathways, and how can these factors be optimized to increase yield and efficiency in chemical synthesis?

answered Feb 14 in Quantum Chemistry

1 answer 31 views

How does the molecular geometry and structure of a particular compound affect its reactivity in certain chemical reactions, and how can computational chemistry and molecular modeling be used to predict and optimize these reactions?

answered Feb 13 in Physical Chemistry

1 answer 26 views

How do metalloproteins use coordination chemistry to efficiently transport and store oxygen in the body?

answered Feb 13 in Coordination Chemistry

1 answer 30 views

How can we design drugs that target specific types of cancer cells using the principles of medicinal chemistry, and what are the key factors to consider in the design process?

answered Feb 12 in Medicinal Chemistry

1 answer 29 views

How can we design a polymer-based pH sensor with superior sensitivity and selectivity for the detection of acidic and basic solutions?

answered Feb 12 in Polymer Chemistry

1 answer 46 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?

answered Feb 11 in Materials Chemistry

1 answer 46 views

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

asked Feb 11 in Materials Chemistry

1 answer 37 views

How can the mechanical properties of 3D printed polymer-based materials be improved without compromising their printability?

answered Feb 10 in Polymer Chemistry

1 answer 37 views

How can the design of the transportation system for hazardous chemicals be improved to minimize the risk of accidents and ensure safe transport and storage? Include factors such as container design, transportation route, emergency preparedness, and regulatory compliance in your analysis.

answered Feb 7 in Chemical engineering

1 answer 32 views

How can the chemical structure of a potential new skin disease treatment be modified in order to increase its efficacy and reduce its toxicity for human consumption?

answered Feb 6 in Medicinal Chemistry

1 answer 38 views

How can medicinal chemists modify existing antibiotics to combat drug-resistant bacteria strains?

answered Feb 5 in Medicinal Chemistry

1 answer 54 views

Calculate the standard free energy change for the following redox reaction at 298 K:2 Mg(s) + O2(g) -> 2 MgO(s)(The standard reduction potential for Mg2+/Mg is -2.37 V and for O2/H2O is +1.23 V)

asked Feb 3 in Chemical thermodynamics

1 answer 49 views

Calculate the standard enthalpy change for the sublimation of iodine at 25°C, given that the standard enthalpy of fusion of iodine is 15.7 kJ/mol and the standard enthalpy of vaporization of iodine is 41.0 kJ/mol. (The molar mass of iodine is 126.90 g/mol)

answered Feb 3 in Chemical thermodynamics

1 answer 39 views

How does the base excision repair mechanism work to maintain the integrity of DNA during replication and prevent mutations?

asked Jan 31 in BioChemistry

1 answer 53 views

Calculate the formal charge of nitrogen in the molecule NO₃⁻.

asked Jan 23 in Chemical bonding

1 answer 59 views

Calculate the enthalpy change of dissolution when 5 grams of sodium chloride (NaCl) dissolves in 100 mL of water at 25°C. The molar enthalpy of dissolution of sodium chloride is -3.9 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 50 views

Calculate the enthalpy change for the dissolution of 10g of NaCl in 100g of water, given that the initial and final temperatures are 25°C and 20°C respectively. The molar mass of NaCl is 58.44 g/mol and the specific heat capacity of water is 4.18 J/(g°C).

answered Jan 23 in ThermoChemistry

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