Recent activity by SGDJenifer99

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What is the reaction mechanism for the conversion of an alcohol to a halide using thionyl chloride, and what is the stereochemistry of the product formed?

answered Feb 22 in Organic Chemistry

1 answer 29 views

What is the rate law for the reaction between hydrogen peroxide and potassium iodide, and how can it be determined experimentally?

asked Feb 22 in Chemical kinetics

1 answer 33 views

What is the effect of increasing the pH on the equilibrium position of the reaction between acetic acid and sodium acetate? Provide a mathematical explanation to justify your answer.

answered Feb 22 in Chemical equilibrium

1 answer 31 views

How does the orientation of magnetic fields affect the electronic properties of topological materials such as graphene?

answered Feb 22 in Quantum Chemistry

1 answer 34 views

How will an increase in temperature affect the equilibrium constant of the following reaction at equilibrium: N2 (g) + 3H2 (g) ⇌ 2NH3 (g) Assume that the reaction takes place at constant pressure.

answered Feb 20 in Chemical equilibrium

1 answer 39 views

How does the compatibility between Polystyrene and Polybutadiene affect the properties of their blend and what are the practical applications of this blend?

asked Feb 18 in Polymer Chemistry

1 answer 26 views

What is the effect of concentration and temperature on the adsorption efficiency of activated carbon in removing a specific pollutant from water?

asked Feb 17 in Surface Chemistry

1 answer 34 views

How can we predict the color of transition metal complexes based on their electronic configurations and ligands?

asked Feb 14 in Inorganic Chemistry

1 answer 50 views

What is the role of metal ions in the catalytic activity of metalloenzymes and metalloproteins? Provide specific examples and explain the mechanism of action.

answered Feb 13 in Coordination Chemistry

1 answer 56 views

What are the predominant intermolecular forces present in a sample of water and how do they contribute to its unique properties?

answered Feb 13 in Chemical bonding

1 answer 53 views

How does heavy metal contamination in soil affect the growth and quality of crops, and what are the best strategies for remediation of this type of soil pollution?

answered Feb 13 in Environmental Chemistry

1 answer 71 views

What is the magnetic moment of Fe(CO)₅ in the gas phase? Calculate the magnetic moment and identify its configuration.

answered Feb 13 in Inorganic Chemistry

1 answer 48 views

How can we create a more hands-on approach in teaching chemistry for students who have limited opportunities for laboratory experimentation?

asked Feb 12 in Chemical education

1 answer 47 views

How can the permeability of polymer-based membranes used in water treatment be optimized while maintaining high selectivity to remove contaminants?

asked Feb 10 in Polymer Chemistry

1 answer 40 views

How can chemistry students increase public awareness about the important role of chemistry in society and the economy?

answered Feb 5 in Chemical education

1 answer 31 views

Consider the redox reaction 2Fe^2+(aq) + H2O2(aq) + 2H^+(aq) ⟷ 2Fe^3+(aq) + 2H2O(l). If a catalyst is added to the reaction mixture at equilibrium, will the concentration of Fe^3+ increase, decrease or remain the same? Justify your answer mathematically.

asked Feb 3 in Chemical equilibrium

1 answer 103 views

Calculate the volume of 0.2 M hydrochloric acid required to completely neutralize 25 mL of 0.1 M sodium hydroxide solution.

answered Feb 3 in Chemical reactions

1 answer 90 views

How do the photochemical properties of bioluminescent organisms vary among different species, and what chemical reactions are responsible for the production of light in these organisms?

answered Jan 31 in PhotoChemistry

1 answer 80 views

Calculate the enthalpy change of reduction for Fe2O3 using the following data:Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) ΔH°rxn = -26.8 kJ mol^-1Fe2O3(s) + 2Al(s) → Al2O3(s) + 2Fe(l) ΔH°rxn = +824.2 kJ mol^-1Note: The standard enthalpy of formation for CO2(g) is -393.5 kJ mol^-1 and for Al2O3(s) is -1675.7 kJ mol^-1.

asked Jan 23 in ThermoChemistry

1 answer 88 views

Calculate the bond length between two hydrogen atoms (H-H) that are bonded together by a single covalent bond, knowing that the bond energy is 436 kJ/mol and the force constant is 432 N/m.

answered Jan 23 in Chemical bonding

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