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0
votes
20
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What is the most efficient catalyst for the synthesis of polypropylene from propylene monomer and how does its concentration affect the yield and properties of the resultant polymer?
answered
6 days
ago
in
Chemical synthesis
0
votes
25
views
What is the glass transition temperature of polyvinyl chloride (PVC) and how does it affect its mechanical properties?
answered
Feb 20
in
Physical Chemistry
0
votes
23
views
What is the geometry and polarity of the ammonia molecule, NH3?
answered
Feb 20
in
Inorganic Chemistry
0
votes
25
views
What is the effect of changing the hydrophobic/hydrophilic balance of a surfactant on its foaming capabilities?
answered
Feb 20
in
Surface Chemistry
0
votes
24
views
What is the effect of varying the surface area of a reactant on the rate of a chemical reaction?
answered
Feb 20
in
Chemical kinetics
0
votes
28
views
How does the concentration of sulfur dioxide and nitrogen oxides in acid rain affect the pH level of freshwater bodies and what are the potential environmental impacts of this acidification?
answered
Feb 19
in
Environmental Chemistry
0
votes
27
views
What is the bond enthalpy of the carbon-carbon double bond (C=C) in ethene (C2H4) when 120 kJ/mol of energy is required to break the bond?
answered
Feb 18
in
Chemical bonding
0
votes
24
views
What are the key parameters to consider for optimizing the production process of a specific food additive and how can these parameters be controlled and monitored to ensure consistent high-quality output?
answered
Feb 14
in
Chemical engineering
0
votes
30
views
How can the physical and chemical properties of polymers be optimized to enhance the efficacy and accuracy of drug delivery systems?
answered
Feb 10
in
Polymer Chemistry
0
votes
28
views
How can supramolecular chemistry and self-assembly be utilized to design a novel drug delivery system that targets cancer cells specifically?
answered
Feb 5
in
Physical Chemistry
0
votes
49
views
How do chaperone proteins assist in the folding of newly synthesized proteins, and what are the consequences of improper protein folding?
answered
Feb 3
in
BioChemistry
0
votes
65
views
How does the carbon fixation process occur during photosynthesis, and what specific enzymes are involved in this process?
answered
Jan 31
in
BioChemistry
0
votes
91
views
What is the difference between an aldehyde and a ketone in terms of their chemical structure and properties? Provide examples of each and explain how they undergo reactions differently in Organic Chemistry.
answered
Jan 31
in
Organic Chemistry
0
votes
81
views
How can the pH of water affected by acid mine drainage be restored to a safe level for aquatic life?
answered
Jan 30
in
Environmental Chemistry
0
votes
78
views
How can the chemical engineer design a system that minimizes waste and maximizes efficiency in the production of lubricants, while also meeting the required quality standards for the final product?
answered
Jan 30
in
Chemical engineering
0
votes
63
views
Calculate the enthalpy of desorption of carbon dioxide (CO2) from a surface if the surface coverage is 0.025 mol/m² and the temperature is 298 K. The enthalpy of adsorption for CO2 on the surface is -35.8 kJ/mol. The equilibrium constant (K) for the reaction is 2.99 x 10⁶ at 298 K.
answered
Jan 23
in
ThermoChemistry
0
votes
51
views
According to the opponent-process theory, what is the relationship between primary and opponent emotions?
answered
Jan 20
in
Psychology
0
votes
48
views
What are the key assumptions of evolutionary psychology?
answered
Jan 16
in
Psychology
0
votes
37
views
Who developed Ecological Systems Theory?
answered
Jan 15
in
Psychology
0
votes
40
views
What is the concept of parallel processing in perception?
answered
Jan 15
in
Psychology
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