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How does the polarity of the solvent affect the rate of the photochemical reaction in the presence of a photosensitizer?
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3 days
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PhotoChemistry
1
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19
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What is the effect of polymer molecular weight on the mechanical properties of 3D printed objects?
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4 days
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Polymer Chemistry
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21
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What is the effect of changing the hydrophobic/hydrophilic balance of a surfactant on its foaming capabilities?
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5 days
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Surface Chemistry
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27
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What is the effect of temperature on the reaction sustainability of the decomposition of hydrogen peroxide catalyzed by potassium iodide?
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6 days
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Chemical kinetics
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22
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What is the critical micelle concentration (CMC) of Sodium Dodecyl Sulfate (SDS) in water at room temperature and pH 7? How does the CMC of SDS change with temperature and pH? How does the presence of dissolved salts affect the CMC of SDS?
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Surface Chemistry
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How does the concentration of heavy metals affect the growth of aquatic plants in contaminated water?
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Feb 19
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Environmental Chemistry
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How does the binding affinity of protein-protein interactions change with variations in temperature and pH?
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Feb 17
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BioChemistry
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How does temperature affect the rate of enzyme catalyzed reactions in biochemistry?
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Feb 17
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BioChemistry
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24
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What factors affect the adhesion and cohesion of coatings on various surfaces? Develop an experimental procedure to measure and compare these properties for different coatings and substrates.
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Feb 14
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Surface Chemistry
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35
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How can the synthesis process of quantum dots be optimized to achieve better control over their size, shape, and composition?
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Feb 14
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Materials Chemistry
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39
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How does increasing the light intensity affect the rate of photochemical reactions of a solution containing a photosensitive dye?
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Feb 13
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PhotoChemistry
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38
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How does the elevation of certain amino acid levels in the blood affect the production of neurotransmitters and lead to neurological disorders like phenylketonuria (PKU) and maple syrup urine disease (MSUD)?
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Feb 13
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BioChemistry
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8
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How to design a sustainable and efficient system for recovering precious metals like gold, silver, and copper from electronic waste without causing any environmental harm?
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Feb 12
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Chemical engineering
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9
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How can the structural features of a specific virus be utilized in designing drugs that target and inhibit its replication, while avoiding harmful effects on human cells and other non-targeted viruses?
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Feb 10
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Medicinal Chemistry
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43
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How can the self-assembly of supramolecular structures be controlled and manipulated to design functional materials with specific properties such as increased conductivity or selective molecular recognition?
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Feb 10
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Physical Chemistry
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42
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How can the production process of lubricants be optimized in order to reduce the overall cost and increase the efficiency of the system, while maintaining the desired quality and performance of the product?
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Feb 10
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Chemical engineering
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How can the efficiency of a lubricant production system be improved through chemical and process optimization?
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Feb 7
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Chemical engineering
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30
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How can the adhesion and cohesion properties of polymer-based adhesives and sealants be improved for use in high-temperature applications?
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Feb 6
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Polymer Chemistry
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34
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How can computational chemistry tools be used to identify novel inhibitors for specific protein-protein interactions involved in a certain disease pathway? Specifically, using molecular docking studies, can the interactions between the two proteins be analyzed and potential small molecule inhibitors be identified and characterized for their efficacy and specificity?
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Feb 5
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Computational Chemistry
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52
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Calculate the standard enthalpy change for the reaction between hydrochloric acid (HCl) and ammonia (NH3) to produce ammonium chloride (NH4Cl) if the reaction is carried out in a solution of water (H2O), given the following information:HCl(aq) + H2O(l) -> H3O+(aq) + Cl-(aq) ΔH1 = -74.8 kJ/mol NH3(aq) + H2O(l) ⇌ NH4+(aq) + OH-(aq) ΔH2 = -51.8 kJ/mol NH4Cl(s) → NH4+(aq) + Cl-(aq) ΔH3 = 15.2 kJ/mol Ensure that the answer is in kJ/mol.
answered
Feb 3
in
Chemical thermodynamics
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