Recent activity by TereseMandal

1 answer 13 views

How do the photochemical properties of supramolecular assemblies change in the presence of different binding motifs and ligands?

asked 3 days ago in PhotoChemistry

1 answer 17 views

What is the optimal reaction temperature and time required for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine to achieve maximum yield and purity?

answered 3 days ago in Chemical synthesis

1 answer 18 views

How does the molecular structure of conductive polymers affect their electrical conductivity and mechanical flexibility, and how can this be optimized for use in flexible electronic devices?

answered 4 days ago in Materials Chemistry

1 answer 19 views

What is the molecular geometry of the molecule CF4?

answered 4 days ago in Chemical bonding

1 answer 20 views

How does the mechanism of adsorption on the catalyst surface affect the rate of reaction for the production of ammonia through the Haber-Bosch process?

asked 5 days ago in Surface Chemistry

1 answer 25 views

What is the enthalpy change (in kJ/mol) for the combustion of propane (C3H8) using Hess's Law? Use the following information: C3H8 + 5O2 → 3CO2 + 4H2O ∆H = −2043 kJ/mol 2CO + O2 → 2CO2 ∆H = −566 kJ/mol H2 + 1/2O2 → H2O ∆H = −285.8 kJ/mol

answered 5 days ago in ThermoChemistry

1 answer 30 views

How does the change in the oxidation state of a molecule affect its electron transfer processes and redox reactions, and what quantum mechanical principles can be used to predict and understand these changes?

answered Feb 18 in Quantum Chemistry

1 answer 27 views

What is the total surface area of a sample of activated carbon with a mass of 0.5 g, assuming a monolayer adsorption capacity of 80 mg/g and a BET surface area of 900 m²/g?

asked Feb 18 in Surface Chemistry

1 answer 28 views

How does temperature affect the multilayer adsorption of gases onto solid surfaces predicted by the BET theory? Provide experimental evidence to support your answer.

asked Feb 17 in Surface Chemistry

1 answer 24 views

What is the reaction mechanism for the acid-catalyzed cleavage of an ether? Provide the step-by-step process and the structures of the intermediate compounds involved in the reaction.

asked Feb 17 in Organic Chemistry

1 answer 9 views

How can we use quantum chemistry to calculate magnetic susceptibility values for a given molecule or material and how can that information be used to predict the magnetic behavior of the substance in different conditions?

asked Feb 14 in Quantum Chemistry

1 answer 22 views

What is the difference between primary, secondary, and tertiary amines, and how does their basicity compare? Provide an example of each type of amine and their corresponding amide.

answered Feb 14 in Organic Chemistry

1 answer 28 views

How can you optimize the production process of a specific pharmaceutical drug to minimize waste and increase efficiency while maintaining quality and safety standards?

answered Feb 14 in Chemical engineering

1 answer 37 views

What is the effect of changing the reactant concentration on the reaction rate for a second-order chemical reaction? Provide experimental evidence to support your answer.

asked Feb 13 in Chemical kinetics

1 answer 34 views

What is the difference between E1 and E2 mechanisms in elimination reactions? Provide an example of each mechanism and discuss the factors that influence the rate of each reaction.

answered Feb 13 in Organic Chemistry

1 answer 51 views

How can the synthesis of biodegradable polymers be optimized to achieve the desired mechanical properties for its intended use in a given application?

asked Feb 11 in Polymer Chemistry

1 answer 49 views

How can the production system for paints and coatings be optimized to minimize waste and increase efficiency while still maintaining high-quality standards?

asked Feb 10 in Chemical engineering

1 answer 36 views

How can limited exposure to current research in chemistry impact a student's understanding of the subject and hinder their ability to apply it in practical settings?

answered Feb 5 in Chemical education

1 answer 41 views

Calculate the standard enthalpy change of the precipitation reaction between 50.0 mL of 0.100 M Pb(NO3)2 and excess 0.100 M NaCl solution at 25°C given that the reaction is Pb(NO3)2 (aq) + 2NaCl (aq) → PbCl2(s) + 2NaNO3 (aq) and the enthalpy of formation of NaNO3 (aq) and NaCl (aq) are -467.7 kJ/mol and -411.2 kJ/mol respectively.

asked Feb 3 in Chemical thermodynamics

1 answer 46 views

Calculate the standard enthalpy change for the combustion of methane gas at standard conditions, given the following balanced chemical equation:CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l)Note: Standard conditions refer to a temperature of 25°C and a pressure of 1 atm.

answered Feb 3 in Chemical thermodynamics

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