Recent activity by NoellaEtx177

1 answer 20 views

What is the relationship between a drug's molecular structure and its pharmacodynamic properties? Provide examples of drugs that illustrate this relationship.

asked 1 day ago in Medicinal Chemistry

1 answer 21 views

What is the predicted effect on the equilibrium position when the pressure is increased in a closed chemical system that contains a mixture of hydrogen gas and nitrogen gas, forming ammonia gas? How can this effect be experimentally verified?

asked 3 days ago in Chemical equilibrium

1 answer 21 views

What is the pKa value of acetic acid, and what is the pH of a 0.1 M solution of acetic acid? Also, what is the percent ionization of acetic acid in this solution? (Assume temperature to be 25°C and the ionization of acetic acid to be a one-step process.)

asked 3 days ago in Organic Chemistry

1 answer 23 views

What is the optimal reaction conditions for the synthesis of polyvinylpyrrolidone from vinylpyrrolidone monomer, and how do these conditions affect the yield and quality of the final product?

asked 4 days ago in Chemical synthesis

1 answer 26 views

What is the electronic structure and bonding analysis of a water molecule using Hartree-Fock method, and how does the formation of molecular orbitals contribute to the stability of the molecule?

asked 5 days ago in Quantum Chemistry

1 answer 24 views

What is the mechanism of electrophilic addition reaction of HBr with an alkene, and how does the reactivity of the alkene affect the rate and regioselectivity of the reaction? Provide relevant examples to support your answer.

answered 6 days ago in Organic Chemistry

1 answer 32 views

What is the effect of varying reactant concentrations on the rate of reaction between hydrogen peroxide and potassium iodide, and how does this affect the profitability of the reaction?

answered 6 days ago in Chemical kinetics

1 answer 22 views

What is the effect of concentration on the reaction rate of the reaction between potassium iodate and sodium sulfite, and how does this affect the overall sustainability of the reaction?

answered 6 days ago in Chemical kinetics

1 answer 32 views

What is the boiling point of potassium chloride (KCl) at standard atmospheric pressure? Show the necessary calculations and units used to arrive at your answer.

asked Feb 17 in Inorganic Chemistry

1 answer 25 views

How does the addition of different catalysts affect the rate of the reaction between hydrogen peroxide and potassium iodide?

asked Feb 17 in Chemical kinetics

1 answer 35 views

How do specific amino acid sequences in transcription factors contribute to DNA-protein interactions and regulation of gene expression?

asked Feb 14 in BioChemistry

1 answer 32 views

How do ribonucleoprotein complexes (RNPs) recognize specific sequences on pre-mRNA during RNA splicing, and what role do metal ions play in mediating this recognition process?

answered Feb 14 in BioChemistry

1 answer 11 views

How can we design a polymer-based smart material that can detect and respond to environmental changes such as temperature, humidity, or pH levels?

asked Feb 12 in Polymer Chemistry

1 answer 40 views

How can the student optimize the production process of fertilizer to minimize the use of resources (energy, raw materials, time) while ensuring maximum yield and quality of the final product?

asked Feb 11 in Chemical engineering

1 answer 42 views

How can the principles of quantum chemistry be applied to predict the catalytic activity and selectivity of a chemical reaction? Specifically, how can molecular modeling techniques be used to accurately predict the reaction rates, mechanisms, and product distributions in catalytic reactions, and what factors must be considered when designing catalysts for optimal effectiveness and selectivity?

answered Feb 10 in Quantum Chemistry

1 answer 33 views

How can the efficiency of the production process for biofuels be optimized through the use of catalysts and other chemical additives?

asked Feb 7 in Chemical engineering

1 answer 32 views

How can Fourier Transform Infrared Spectroscopy (FTIR) be used to identify different functional groups present in a polymer sample and how can the information obtained from FTIR spectra assist in characterization of the polymer?

answered Feb 6 in Polymer Chemistry

1 answer 11 views

How can coordination chemistry principles be applied to design more efficient chelating agents for the treatment of heavy metal poisoning in humans?

asked Feb 5 in Coordination Chemistry

1 answer 39 views

Calculate the standard electrode potential of the electrode in the given electrochemical cell: Fe3+(aq) + 3e- → Fe(s) E°= -0.04V Ag+(aq) + e- → Ag(s) E°= 0.80V

answered Feb 3 in ElectroChemistry

1 answer 32 views

How does changing the pressure of a reaction between hydrogen gas and iodine gas affect the rate of reaction, and how can this relationship be explained by collision theory?

asked Feb 3 in Chemical kinetics

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