Recent activity by DebraKeys12

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What are the significant discoveries and contributions of the early chemists in the evolution of chemistry, and how did they impact the development of modern chemistry?

answered 2 days ago in Chemical education

1 answer 23 views

What is the vibrational frequency and infrared spectrum of water molecule using the quadratic force field method?

answered 5 days ago in Quantum Chemistry

1 answer 23 views

What are the photochemical properties of [Fe(CN)6]^-4 and [Co(NH3)5Cl]2+ coordination compounds? Explain how the ligands affect the electronic transitions and absorption spectra of these complexes upon exposure to light.

answered 5 days ago in PhotoChemistry

1 answer 24 views

How does the modification of the surface of polymers affect their wettability and adhesion properties?

asked 6 days ago in Surface Chemistry

1 answer 23 views

How does the folding pattern of a protein determine its function?

asked Feb 20 in BioChemistry

1 answer 24 views

How does the dielectric constant of a solvent affect the reaction rate of a chemical reaction?

answered Feb 19 in Chemical kinetics

1 answer 24 views

How does the degree of polymer crystallinity affect the mechanical properties of a polymer?

answered Feb 19 in Polymer Chemistry

1 answer 35 views

How do intermolecular interactions affect the solubility of a compound in a particular solvent?

asked Feb 13 in Quantum Chemistry

1 answer 46 views

What is the effect of increasing the surface area on the reaction rate of the reaction between magnesium ribbon and hydrochloric acid?

asked Feb 13 in Chemical kinetics

1 answer 32 views

How does increasing pressure affect the rate of reaction between hydrogen gas and iodine gas to form hydrogen iodide gas, and what is the rate law expression for this reaction under high-pressure conditions?

answered Feb 13 in Chemical kinetics

1 answer 48 views

What is the role of glutamine synthetase in nitrogen assimilation and metabolism, and how does it catalyze the conversion of glutamate and ammonia into glutamine?

asked Feb 13 in BioChemistry

1 answer 38 views

How can the synthesis of polyvinyl alcohol from vinyl acetate monomer be optimized to ensure that the resulting polymer has the desired molecular weight and level of hydrolysis?

answered Feb 11 in Chemical synthesis

1 answer 44 views

How can the size and shape of a quantum dot affect its electronic and optical properties?

answered Feb 10 in Quantum Chemistry

1 answer 11 views

How can the principles of quantum mechanics be applied to improve the efficiency of quantum computing algorithms for simulating chemical reactions and properties?

answered Feb 10 in Quantum Chemistry

1 answer 39 views

How can the efficiency of the production process for the pharmaceutical drug be optimized with the use of catalysts?

answered Feb 7 in Chemical engineering

1 answer 36 views

How can quantum computing be used to solve the electronic structure problem in quantum chemistry?

answered Feb 5 in Quantum Chemistry

1 answer 64 views

What are the potential drug-drug interactions between aspirin and ibuprofen, and how do they affect the metabolism and efficacy of each drug?

answered Jan 31 in Medicinal Chemistry

1 answer 78 views

What is the molecular structure of a sample under investigation, based on the magnetic resonance spectra recorded at different temperatures and under different magnetic fields?

answered Jan 31 in Physical Chemistry

1 answer 60 views

Calculate the enthalpy change for the reaction of 2.5 g of hydrogen gas with excess oxygen gas to produce water, given that the enthalpy of formation of water is -285.83 kJ/mol and the molar mass of hydrogen gas is 2.02 g/mol.

answered Jan 23 in ThermoChemistry

1 answer 54 views

What is the solubility product constant of calcium hydroxide in water at 25°C?

asked Jan 21 in Inorganic Chemistry

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