Recent activity by WandaBalsill

1 answer 21 views

How does the presence of a reaction intermediate affect the rate of a chemical reaction, and can this effect be quantified using experimental techniques?

asked Feb 22 in Chemical kinetics

1 answer 38 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?

answered Feb 20 in Chemical equilibrium

1 answer 33 views

What is the ground state electronic configuration and bond order of the oxygen molecule using Molecular Orbital Theory?

answered Feb 20 in Quantum Chemistry

1 answer 32 views

What are the coordination geometries of the metal centers in heme proteins, and how do they help in the enzymatic activity of these proteins? Provide examples of heme proteins and their functions where these coordination geometries play a critical role.

asked Feb 19 in Coordination Chemistry

1 answer 36 views

How does the change in energy of an electron during a redox reaction impact the overall reaction rate? Provide specific examples.

answered Feb 18 in Quantum Chemistry

1 answer 15 views

How can we improve the selectivity and permeability properties of polymer-based membranes for water treatment, particularly in removing specific contaminants such as heavy metals or organic pollutants?

asked Feb 13 in Polymer Chemistry

1 answer 68 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their catalytic activity? Provide specific examples of metalloenzymes/proteins and their coordination chemistry that illustrate this phenomenon.

asked Feb 12 in Coordination Chemistry

1 answer 31 views

How can the performance of a polymer-based sensor be optimized to detect low concentrations of a target analyte in a complex sample matrix?

answered Feb 10 in Polymer Chemistry

1 answer 44 views

How can the knowledge of the molecular structure of a specific target virus be used to design drugs that selectively and effectively target the virus, while minimizing side effects on human cells?

asked Feb 7 in Medicinal Chemistry

1 answer 43 views

How can chemistry teachers integrate technology into their teaching methods to effectively convey complex chemical concepts and principles to their students?

answered Feb 5 in Chemical education

1 answer 53 views

Calculate the standard enthalpy change of reduction for the following reaction: Cu2+(aq) + 2e- -> Cu(s) Given that the standard electrode potential of Cu2+(aq)/Cu(s) is +0.34 V and the standard electrode potential of Ag+(aq)/Ag(s) is +0.80 V.

asked Feb 3 in ThermoChemistry

1 answer 34 views

Calculate the standard enthalpy change for the neutralization of HCl with NaOH, given that the heat of formation of water is -285.8 kJ/mol, the heat of formation of NaCl is -411.1 kJ/mol, and the initial concentrations of HCl and NaOH are 1.0 M.

asked Feb 3 in Chemical thermodynamics

1 answer 55 views

How does changing the temperature affect the behavior of a polymer system composed of 1000 chains constructed from styrene monomers, as determined by Monte Carlo simulations, and how can this information be applied to design synthetic polymers with specific properties?

asked Feb 3 in Computational Chemistry

1 answer 75 views

Calculate the heat of hydration for the reaction where 1 mole of anhydrous copper(II) sulfate reacts with water to form 5 moles of hydrated copper(II) sulfate, given that the enthalpy change for the reaction is -92.2 kJ/mol.

answered Jan 23 in ThermoChemistry

1 answer 124 views

Calculate the enthalpy change for the dissolution of 5.00 g of potassium chloride (KCl) in 100 mL of water. Given that the specific heat capacity of the resulting solution is 4.18 J/g°C, and its temperature increases from 25.0°C to 30.0°C. The molar mass of KCl is 74.55 g/mol, and the enthalpy of hydration of K+ and Cl- ions is -716 and -364 kJ/mol, respectively.

asked Jan 23 in ThermoChemistry

1 answer 45 views

What is response rate?

answered Jan 20 in Psychology

1 answer 130 views

What is the bottom-up approach's evaluation of visual illusions?

answered Jan 20 in Psychology

1 answer 63 views

Compare and contrast the nativist and empiricist perspectives on cognitive development.

asked Jan 20 in Psychology

1 answer 33 views

Where did John Bowlby conduct his research?

answered Jan 17 in Psychology

1 answer 49 views

What is the purpose of a mixed effects model?

answered Jan 17 in Psychology

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