Recent activity by TereseAbner

1 answer 30 views

What is the equilibrium constant expression for the ionization of acetic acid, CH3COOH, in water and calculate the equilibrium constant (Ka) at 25°C if the pH of a 0.1 M acetic acid solution is 4.90?

asked 6 days ago in Chemical equilibrium

1 answer 36 views

How do the electronic and optical properties of perovskite materials change with different dopants and dopant concentrations?

asked Feb 20 in Quantum Chemistry

1 answer 37 views

How does the degree of polymerization affect the electrical conductivity of conductive polymers used in flexible electronics?

answered Feb 19 in Materials Chemistry

1 answer 35 views

How does the concentration of reactants affect the rate of an inorganic reaction, and can this relationship be quantified using experimental data?

asked Feb 19 in Inorganic Chemistry

1 answer 34 views

How does the concentration of greenhouse gases in Earth's atmosphere affect the global temperature? Provide specific examples of greenhouse gases and their contribution to global warming.

answered Feb 19 in Environmental Chemistry

1 answer 24 views

What is the balanced chemical equation for the preparation of 2,4-dichlorobenzoic acid via the reaction between benzoic acid and chlorine gas under specific reaction conditions?

asked Feb 17 in Chemical synthesis

1 answer 36 views

What factors contribute to the bond strength of a molecule and how can you predict the bond strength of a given molecule? Provide examples of molecules with strong and weak bonds and explain how their structures affect their bond strength.

answered Feb 14 in Chemical bonding

1 answer 31 views

How can we optimize the conductivity of conductive polymers for use in flexible electronics through manipulation of molecular structure and processing methods?

answered Feb 14 in Materials Chemistry

1 answer 55 views

Identify the functional group(s) present in a given organic molecule using infrared (IR) spectroscopy and provide an explanation on how the molecular vibrations observed in the IR spectrum of the molecule correspond to the functional groups present.

answered Feb 13 in Physical Chemistry

1 answer 48 views

How does the incorporation of functional groups affect the binding strength of host-guest complexes in supramolecular chemistry, as predicted by computational studies?

asked Feb 13 in Computational Chemistry

1 answer 35 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.

asked Feb 13 in Organic Chemistry

1 answer 39 views

How can the molecular weight and physical properties of polyethylene be controlled during the synthesis process from ethylene monomer?

asked Feb 10 in Chemical synthesis

1 answer 30 views

How can molecular docking studies aid in developing new drugs to target COVID-19 protease enzyme?

asked Feb 6 in Computational Chemistry

1 answer 34 views

How can knowledge of chemistry principles be applied to real-world scenarios such as the production and use of common household items such as laundry detergent or shampoo? What are some of the key chemical processes involved in their creation and use?

asked Feb 6 in Chemical education

1 answer 32 views

How can incorporating environmental chemistry into the curriculum improve students' understanding of the impact of chemical reactions on the environment and promote sustainable practices in the field of chemistry?

answered Feb 5 in Chemical education

1 answer 34 views

How can chemistry students with limited access to laboratory equipment and facilities still conduct meaningful experiments to supplement their learning?

asked Feb 5 in Chemical education

1 answer 34 views

How can a student adequately prepare for a chemistry exam, specifically in the areas of stoichiometry and balancing chemical equations? Provide examples and strategies for improving understanding and retention of these concepts.

answered Feb 4 in Chemical education

1 answer 41 views

Calculate the lattice energy of NaF given the following information: the enthalpy of formation of NaF is -572.6 kJ/mol, the ionization energy of Na is 495.8 kJ/mol, the electron affinity of F is -328 kJ/mol, and the Madelung constant for NaF is 1.747.

asked Jan 23 in Inorganic Chemistry

1 answer 58 views

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

asked Jan 23 in Chemical bonding

1 answer 74 views

A chemistry student needs to determine the percent by mass of magnesium (Mg) in a sample of limestone. The student has access to 5 grams of the sample and is provided with the following information: the sample is comprised of calcium carbonate (CaCO3) and magnesium carbonate (MgCO3); the atomic masses of the elements are: Ca = 40.08 g/mol, C = 12.01 g/mol, O = 16.00 g/mol, and Mg = 24.31 g/mol; and the sample contains a total of 3.06 grams of carbon (C). Calculate the percentage by mass of magnesium in the limestone sample using mass balance calculations.

asked Jan 22 in Analytical Chemistry

Recent activity by TereseAbner

Categories