Recent activity by MAQShelton1

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What is the effect of the initial concentration of reactants on the reaction rate and yield in the reaction between hydrochloric acid and sodium thiosulfate?

answered 3 days ago in Chemical kinetics

1 answer 15 views

What are the predicted products of the reaction between copper sulfate and zinc metal?

asked 3 days ago in Inorganic Chemistry

1 answer 23 views

What is the effect of the molecular weight of the polymer on the performance of its coatings and paints in terms of adhesion, scratch resistance, and durability?

asked 4 days ago in Polymer Chemistry

1 answer 25 views

What is the mechanism of action for the photochemical properties of the active ingredients in a selected sunscreen agent, and how do different factors, such as wavelength of light and concentration of the active ingredient, affect its efficacy?

asked 4 days ago in PhotoChemistry

1 answer 19 views

How does the introduction of heavy lanthanide ions affect the quantum efficiency of photochemical processes in coordination compounds?

answered 4 days ago in PhotoChemistry

1 answer 23 views

What is the amount of energy required to break the single C-H bond in the methane (CH4) molecule? Provide the answer in units of kilojoules per mole (kJ/mol).

answered 5 days ago in Chemical reactions

1 answer 20 views

How does the coordination chemistry of metalloproteins affect their enzymatic activity in the presence of metal ions like heme, iron-sulfur clusters, and copper ions, and how do these metal ions assist in catalytic reactions in metalloproteins?

answered 6 days ago in Coordination Chemistry

1 answer 28 views

How does the addition of different types of lipids affect the structure and behavior of a lipid bilayer membrane as observed through molecular dynamics simulations?

asked Feb 17 in Computational Chemistry

1 answer 27 views

How does the acidity of zeolites affect their catalytic properties for cracking hydrocarbons? Use computational methods to determine the optimal acidity conditions for maximum hydrocarbon conversion in zeolite catalysts.

answered Feb 17 in Computational Chemistry

1 answer 23 views

What is the effect of surface coverage on the electronic properties of a metal surface, as predicted by density functional theory calculations?

answered Feb 17 in Computational Chemistry

1 answer 33 views

How can we safely dispose of highly radioactive waste materials generated from nuclear power plants to minimize long-term ecological impacts on the environment?

answered Feb 14 in Environmental Chemistry

1 answer 35 views

How can we optimize the photoluminescence quantum yield of a phosphorescent material using photochemical methods?

answered Feb 14 in PhotoChemistry

1 answer 46 views

How does the enzyme glutamine synthetase play a role in the assimilation of nitrogen in plants and bacteria?

asked Feb 13 in BioChemistry

1 answer 4 views

How can we design drugs with high specificity towards a specific type of bacteria, while minimizing any potential harmful effects on the human body?

answered Feb 12 in Medicinal Chemistry

1 answer 39 views

How can we design and synthesize small molecule inhibitors that selectively target autoimmune disease-causing immune cells and suppress their activity without affecting healthy cells in the body?

asked Feb 12 in Medicinal Chemistry

1 answer 31 views

How can the surface adhesion properties of a polymer be improved for use in medical implants and devices?

answered Feb 11 in Polymer Chemistry

1 answer 39 views

How can the process of ethylene polymerization be optimized to produce high molecular weight and high-density polyethylene while maintaining control over the reaction and reducing unwanted side reactions?

answered Feb 10 in Chemical synthesis

1 answer 52 views

Calculate the yield of ibuprofen obtained from the given starting materials (2-methylpropylbenzene and carbon dioxide) during the synthesis process.

asked Feb 3 in Chemical synthesis

1 answer 46 views

Calculate the standard enthalpy change for the sublimation of iodine at 25°C, given that the standard enthalpy of fusion of iodine is 15.7 kJ/mol and the standard enthalpy of vaporization of iodine is 41.0 kJ/mol. (The molar mass of iodine is 126.90 g/mol)

asked Feb 3 in Chemical thermodynamics

1 answer 40 views

Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid (HCl) and sodium hydroxide (NaOH), given the balanced chemical equation: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l). The enthalpies of formation for NaCl(aq) and H2O(l) are -407.3 kJ/mol and -285.8 kJ/mol, respectively. The specific heat capacity of the solution is 4.18 J/(g*K), and the mass of the resulting solution is 100 g.

answered Feb 3 in Chemical thermodynamics

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