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0
votes
17
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What is the impact of pH on the zeta potential of colloidal particles and how can it be measured experimentally?
answered
3 days
ago
in
Surface Chemistry
0
votes
23
views
What are the optimal conditions and parameters required for 3D printing of polylactic acid (PLA) polymer, and how do these conditions affect the mechanical properties and print quality of the final product?
answered
3 days
ago
in
Materials Chemistry
0
votes
12
views
What are the resonance structures of the molecule NO3- and how do the different structures contribute to its stability?
answered
3 days
ago
in
Chemical bonding
0
votes
15
views
What conditions and reagents are necessary for the efficient synthesis of polyvinyl chloride from vinyl chloride monomer, and how do these parameters affect the yield and properties of the resulting polymer?
answered
5 days
ago
in
Chemical synthesis
0
votes
19
views
How does the coordination environment around the metal ion in metalloproteins affect their enzymatic activity and specificity? Provide specific examples of metalloproteins and their respective metal coordination geometries that support your findings.
answered
6 days
ago
in
Coordination Chemistry
0
votes
25
views
What is the balanced chemical equation for the combustion of ethane (C2H6) in the presence of excess oxygen, and what is the amount of carbon dioxide produced if 5 moles of ethane are burned?
answered
Feb 17
in
Chemical reactions
0
votes
26
views
How does the addition of certain oxides affect the optical properties of glass used in fiber optic communication systems?
answered
Feb 17
in
Materials Chemistry
0
votes
28
views
What is the hybridization of the carbon atom in the molecule CH3OH?
answered
Feb 13
in
Chemical bonding
0
votes
33
views
How can we design new drugs for cancer treatment that selectively target cancer cells while sparing healthy cells, and what chemical modifications can be made to improve their efficacy and minimize toxicity?
answered
Feb 12
in
Medicinal Chemistry
0
votes
32
views
How can the mechanical properties of biodegradable polymers be optimized to meet the specific needs of biomedical applications, such as drug delivery or tissue engineering? Specifically, what factors affect the mechanical strength, elasticity, and biodegradability of polymers, and how can chemists manipulate these factors to enhance the performance of the polymer in a biomedical setting?
answered
Feb 10
in
Materials Chemistry
0
votes
33
views
How can chemical modification of existing anti-inflammatory drugs lead to the development of more effective treatments for inflammatory diseases?
answered
Feb 4
in
Medicinal Chemistry
0
votes
51
views
Describe the mechanism of Heterogeneous Catalysis taking place in the Haber process for ammonia synthesis and explain the role of the catalyst in the reaction.
answered
Feb 3
in
Surface Chemistry
0
votes
61
views
How does changing the concentration of a reactant affect the rate and profitability of a chemical reaction?
answered
Jan 31
in
Chemical kinetics
0
votes
86
views
How does the drug Aspirin exert its anti-inflammatory effect at a molecular level?
answered
Jan 31
in
Medicinal Chemistry
0
votes
77
views
What is the effect of adding a catalyst on the equilibrium position of a redox reaction where iodate ions combine with sulfite ions in an acidic solution to create iodide ions and sulfate ions? Calculate the new equilibrium constant with and without the catalyst given the reaction equation: IO3^- (aq) + 3SO3^2- (aq) + H2O (l) → I^- (aq) + 3SO4^2- (aq) + 2H+ (aq) Assume the temperature, pressure and volume remain constant, and that the initial concentrations of each reactant and product are known.
answered
Jan 30
in
Chemical equilibrium
0
votes
62
views
Calculate the enthalpy change for the polymerization of ethylene to polyethylene if it is known that the heat of combustion of ethylene is -1411 kJ/mol and the enthalpy of formation of polyethylene is -248 kJ/mol. Assume that the reaction occurs at constant pressure and temperature of 25°C.
answered
Jan 23
in
ThermoChemistry
0
votes
10
views
Assuming complete reaction, a chemistry student added 32 grams of reactant A to a reaction mixture that should produce 28 grams of product B. However, the actual yield of B was only 22 grams. What is the percent yield of product B for this chemical reaction?
answered
Jan 22
in
Chemical reactions
+1
vote
60
views
What is the oxidation state of sulfur in the compound sodium sulfite (Na2SO3)?
answered
Jan 21
in
Inorganic Chemistry
0
votes
12
views
Who funded the Australia Institute report on the mental health of Fly-in-fly-out workers?
answered
Jan 20
in
Psychology
0
votes
10
views
What is the importance of incorporating indigenous languages in studying indigenous psychology?
answered
Jan 17
in
Psychology
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