Recent activity by ShavonneSalc

1 answer 20 views

How does the length and conjugation of a polymer chain affect its electronic and optical properties?

answered 4 days ago in Quantum Chemistry

1 answer 19 views

How does the glycolytic pathway regulate glucose metabolism in the human body, and what role does the enzyme phosphofructokinase play in this process?

answered 5 days ago in BioChemistry

1 answer 27 views

What is the effect of temperature on the surface tension of a lipid bi-layer in a biomembrane? Use surface tension measurements and analysis of fatty acid composition to determine the changes in the structure and properties of the biomembrane.

asked 5 days ago in Surface Chemistry

1 answer 20 views

How does the drug-drug interaction between aspirin and warfarin affect blood clotting mechanisms in the body?

asked 5 days ago in Medicinal Chemistry

1 answer 26 views

How does the carbon footprint of a typical car impact the environment and what can be done to reduce it?

answered Feb 18 in Environmental Chemistry

1 answer 25 views

What is the balanced chemical equation for the combustion of methane gas (CH4) and what is the oxidation state of carbon in CH4 before and after the combustion reaction?

asked Feb 17 in Chemical reactions

1 answer 20 views

How does the addition of nanoparticles affect the mechanical properties of polymers used in biomedical applications, such as implants or prosthetics?

asked Feb 17 in Materials Chemistry

1 answer 35 views

How does the absorption of light by a molecule lead to a chemical reaction? Provide a detailed explanation using examples from photochemical reactions.

answered Feb 17 in Physical Chemistry

1 answer 40 views

How does excess phosphorus and nitrogen in water bodies contribute to eutrophication, and what are the potential negative effects on the aquatic ecosystem?

asked Feb 13 in Environmental Chemistry

1 answer 37 views

What is the percentage purity of a given sample of aspirin when the melting point is determined to be 135°C? The literature melting point range for pure aspirin is 135-136°C.

asked Feb 12 in Analytical Chemistry

1 answer 7 views

What impact do residual levels of the commonly used insecticide Chlorpyrifos have on human health when ingested through contaminated food items?

answered Feb 12 in Environmental Chemistry

1 answer 43 views

How can the properties of liquid crystals be manipulated to improve the efficiency and quality of display technology?

answered Feb 10 in Materials Chemistry

1 answer 38 views

How can surface chemistry be used to improve the efficiency of food and beverage processing, and what specific surface modifications or additives can be employed to achieve this?

answered Feb 6 in Surface Chemistry

1 answer 38 views

How can fertilizer management practices be improved to minimize environmental pollution while increasing crop production in sustainable agriculture?

answered Feb 5 in Environmental Chemistry

1 answer 38 views

How can knowledge of pharmacogenetics be used to optimize drug therapy for individual patients in the treatment of cancer? Specifically, investigate the pharmacogenetics of common chemotherapy drugs and the genetic variations that can affect drug response and toxicity in cancer patients.

asked Feb 5 in Medicinal Chemistry

1 answer 59 views

Given that the enthalpy of vaporization of water is 40.7 kJ/mol at its boiling point of 100°C, calculate the amount of energy required to boil 500g of water starting from 25°C.

answered Feb 4 in ThermoChemistry

1 answer 57 views

Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH), given the appropriate thermochemical equations and the following information:- Heat evolved during the reaction, Q = -58.35 kJ/mol- Moles of HCl used, n(HCl) = 0.05 mol- Concentration of NaOH solution, c(NaOH) = 2 M- Volume of NaOH solution used, V(NaOH) = 25.0 mL (assuming density of 1.00 g/mL)Show your calculations and include units in your final answer.

answered Feb 3 in Chemical thermodynamics

1 answer 52 views

Calculate the standard enthalpy change for the following reaction at 298 K: 2NaHCO3(s) + MgCl2(aq) → MgCO3(s) + 2NaCl(aq) + H2O(l)Given the following standard enthalpies of formation: ΔHf°(NaHCO3) = -950.7 kJ/molΔHf°(MgCl2) = -641.8 kJ/molΔHf°(MgCO3) = -1128.2 kJ/molΔHf°(NaCl) = -411.2 kJ/molΔHf°(H2O) = -285.8 kJ/mol

asked Feb 3 in Chemical thermodynamics

1 answer 63 views

How does alternative RNA splicing affect the structure and function of proteins synthesized from a single gene, using specific examples from biochemical processes in living organisms?

answered Jan 31 in BioChemistry

1 answer 69 views

How can X-ray diffraction be used to determine the crystalline structure and composition of a sample? Provide a step-by-step procedure for using this technique to analyze a given sample and interpret the resulting diffraction pattern.

answered Jan 30 in Analytical Chemistry

Recent activity by ShavonneSalc

Categories