Recent activity by HolliePutman

1 answer 30 views

What is the mechanism and intermediates involved in the reaction of tert-butyl alcohol and hydrochloric acid to produce tert-butyl chloride?

asked 3 days ago in Organic Chemistry

1 answer 22 views

How does the polarity of the solvent affect the rate of a photochemical reaction? Provide experimental evidence and discuss the underlying mechanism behind the observed trend.

answered 3 days ago in PhotoChemistry

1 answer 21 views

How does the number and position of water molecules at the interface of DNA-protein interactions affect the stability of the complex structure in molecular dynamics simulations?

asked 4 days ago in Computational Chemistry

1 answer 29 views

How does the genetic makeup of a patient influence their response to a specific drug, and what are the main pharmacogenetic factors that affect drug response in individuals with certain genetic variations?

answered 5 days ago in Medicinal Chemistry

1 answer 31 views

How does the concentration of detergent affect the surface tension of water and the effectiveness of cleaning?

asked Feb 18 in Surface Chemistry

1 answer 24 views

How does the choice of polymer affect the strength and flexibility of 3D printed materials, and how can this knowledge be used to optimize the printing process for producing high-quality polymer-based products?

asked Feb 18 in Polymer Chemistry

1 answer 33 views

How does the absorption of light by a molecule lead to electronic excitations and what are the subsequent photophysical and photochemical processes that occur in the excited state?

answered Feb 17 in Quantum Chemistry

1 answer 32 views

What are some common difficulties that students face when learning about the periodic table and chemical elements, and what strategies can be used to overcome these difficulties in order to improve understanding and retention of the concepts?

asked Feb 14 in Chemical education

1 answer 37 views

How can the structure of existing antibiotics be modified to enhance their efficacy against drug-resistant bacteria while minimizing toxicity to human cells?

answered Feb 11 in Medicinal Chemistry

1 answer 43 views

How can the mechanical and thermal properties of polymer-based materials for 3D printing be optimized for specific applications?

answered Feb 10 in Polymer Chemistry

1 answer 10 views

How can the knowledge of the molecular structure and chemical properties of cancer cells be used to design new drugs that specifically target and kill these cells while sparing healthy cells?

asked Feb 7 in Medicinal Chemistry

1 answer 39 views

How can the efficiency of a surfactant production system be optimized by adjusting the reaction conditions and reactor design parameters?

asked Feb 7 in Chemical engineering

1 answer 32 views

How can the design of a storage and transportation system for hazardous chemicals be optimized for safety and efficiency, while minimizing the risks of leakage, spillage, and environmental contamination?

answered Feb 7 in Chemical engineering

1 answer 32 views

How can medicinal chemists modify existing antibiotics to combat drug-resistant bacteria strains?

asked Feb 6 in Medicinal Chemistry

1 answer 54 views

Calculate the standard enthalpy change for the reaction 2H2(g) + O2(g) ⟶ 2H2O(g), given that the standard enthalpies of formation of H2(g), O2(g), and H2O(g) are 0 kJ/mol, 0 kJ/mol, and -242 kJ/mol, respectively.

answered Feb 3 in Chemical thermodynamics

1 answer 64 views

Calculate the standard enthalpy change for the phase transition reaction where 100.0 grams of solid water (ice) at -10.0 °C is heated to form 100.0 grams of liquid water at 10.0 °C, given the specific heat capacities of ice and water are 2.09 J/g·°C and 4.18 J/g·°C, respectively, and the enthalpy of fusion of water is 6.01 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 46 views

Calculate the standard electrode potential for a silver electrode in contact with a silver ion solution of concentration 0.010 M. The reduction half-equation is Ag+ + e- → Ag.

answered Feb 3 in ElectroChemistry

1 answer 51 views

What is the role of chaperones in protein folding and how do they prevent protein aggregation?

answered Feb 3 in BioChemistry

1 answer 70 views

What is the concentration of iron (II) ions in a sample of tap water? Use colorimetry to determine the absorbance of the sample and compare it to a standard calibration curve for iron (II) ions.

asked Jan 30 in Analytical Chemistry

1 answer 73 views

What is the concentration of a particular protein in a given sample of blood plasma, and how does it compare to the normal concentration range? Analyze the composition of the blood plasma using the capillary electrophoresis technique and determine the concentration of the protein of interest. Compare the results with the established normal range to evaluate the potential health implications of the protein concentration in the sample.

asked Jan 30 in Analytical Chemistry

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