Recent activity by MichaelBirds

1 answer 21 views

How does the excitation of lanthanide complexes affect their luminescence properties? Can this be used for any practical applications, such as sensing or imaging?

asked Feb 20 in PhotoChemistry

1 answer 27 views

How does the energy state of an electron affect the rate of electron transfer in redox reactions?

asked Feb 20 in Quantum Chemistry

1 answer 33 views

What is the effect of temperature on the reaction rate of the reaction between sodium thiosulfate and hydrochloric acid, and how can it be quantitatively measured using the rate of disappearance of the reactant or the rate of appearance of the product?

asked Feb 20 in Chemical kinetics

1 answer 30 views

What is the effect of temperature on the reaction rate of the decomposition of hydrogen peroxide catalyzed by manganese dioxide? How does the reaction rate change as the temperature increases, and what is the activation energy of the reaction?

asked Feb 20 in Chemical kinetics

1 answer 22 views

What is the effect of surface area on the rate of a chemical reaction between zinc and hydrochloric acid? How does the rate of the reaction change when the size of the zinc particles is varied?

asked Feb 19 in Chemical kinetics

1 answer 16 views

How does the concentration of pollutants and the specific surface area of activated carbon affect the adsorption efficiency of pollutants on activated carbon?

answered Feb 17 in Surface Chemistry

1 answer 28 views

How does the enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) in plants discriminate between carbon dioxide and oxygen during photosynthesis?

answered Feb 14 in BioChemistry

1 answer 43 views

What is the role of ribosomes in RNA transcription and translation, and how does the structure of ribosomes contribute to its function in protein synthesis?

answered Feb 14 in BioChemistry

1 answer 39 views

What is the percent ionization of a 0.1 M solution of acetic acid (pKa = 4.76) at 25°C, if its ionization constant (Ka) changes to 1.32 x 10^-5 when the temperature is raised to 50°C?

asked Feb 13 in Chemical equilibrium

1 answer 29 views

How can the electrical conductivity of conductive polymers be optimized for use in flexible electronics, while maintaining the desired mechanical properties of the material?

answered Feb 7 in Materials Chemistry

1 answer 29 views

How can the design of a lubricant production system be optimized to minimize environmental impact while maintaining high efficiency and quality standards?

answered Feb 7 in Chemical engineering

1 answer 33 views

How can the chemical industry effectively minimize the adverse impact of their waste disposal practices on the environment while still maintaining economic feasibility and compliance with regulations?

answered Feb 6 in Environmental Chemistry

1 answer 42 views

How can computational chemistry be used to predict the binding affinity and selectivity of small molecule inhibitors targeting the interaction between two specific proteins? Compare and contrast the accuracy and limitations of various molecular docking methods in predicting the binding modes and energies of protein-protein interaction inhibitors.

answered Feb 5 in Computational Chemistry

1 answer 46 views

Consider the following equilibrium reaction:2NO(g) + Br2(g) ⇌ 2NOBr(g)If the initial concentration of NO is 0.10 M, Br2 is 0.20 M, and NOBr is 0.40 M, what would be the concentration of NOBr when additional Br2 is added such that its concentration is doubled? Calculate the new equilibrium concentration of NOBr assuming all other conditions remain the same.

answered Feb 3 in Chemical equilibrium

1 answer 60 views

Calculate the standard enthalpy change (ΔH°) for the reaction where 50.0 mL of 2.0 M hydrochloric acid reacts with 50.0 mL of 2.0 M sodium hydroxide to form 50.0 mL of 2.0 M sodium chloride and water, given that the density of the solutions is 1.00 g/mL and the specific heat capacity of the solutions is 4.18 J/g·°C.

asked Feb 3 in Chemical thermodynamics

1 answer 37 views

How does changing the concentration of reactants or products affect the equilibrium position of a chemical reaction? Provide a specific example to support your answer.

answered Feb 3 in Chemical equilibrium

1 answer 11 views

How can the concentration of lead in a water sample be determined using atomic absorption spectroscopy? What factors need to be considered and what steps must be taken to obtain accurate and precise results?

answered Jan 29 in Analytical Chemistry

1 answer 51 views

Calculate the enthalpy of vaporization for propane given its heat of fusion is 0.513 kJ/mol and heat of vaporization is 15.90 kJ/mol. The molar mass of propane is 44.10 g/mol.

answered Jan 23 in ThermoChemistry

1 answer 60 views

A student wants to calculate the amount of copper deposited on the cathode during the electrolysis of a copper (II) sulfate solution. If 2.5 A of current is passed through the cell for 10 minutes, what is the mass of copper that is deposited on the cathode? (Assume the atomic weight of copper is 63.55 g/mol and the Faraday constant is 96,485 C/mol).

answered Jan 22 in ElectroChemistry

1 answer 51 views

According to the research on confirmation bias, how can we overcome its effects?

answered Jan 20 in Psychology

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