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0
votes
1
answer
16
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How does the rate of thermal degradation and stability differ between natural and synthetic polymers and what factors influence these differences?
asked
3 days
ago
in
Polymer Chemistry
0
votes
1
answer
24
views
How does the incorporation of specific metal ions into a metal-organic framework (MOF) affect the predicted electronic and magnetic properties of the MOF?
asked
5 days
ago
in
Quantum Chemistry
0
votes
1
answer
22
views
What is the effect of temperature on the critical micelle concentration (CMC) of a surfactant and how does it relate to the physical properties of the micelles formed?
asked
6 days
ago
in
Surface Chemistry
0
votes
1
answer
17
views
What is the balanced combustion reaction for the complete burning of propane gas (C3H8) in oxygen?
asked
Feb 17
in
Chemical reactions
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votes
1
answer
33
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What is the chemical mechanism of step-growth polymerization, and how does it differ from chain-growth polymerization in terms of molecular weight distribution and reaction rate?
asked
Feb 14
in
Organic Chemistry
0
votes
1
answer
24
views
How do persistent organic pollutants (POPs) enter the food chain, and what are the potential health and environmental impacts of bioaccumulation of POPs in different trophic levels?
asked
Feb 14
in
Environmental Chemistry
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votes
1
answer
30
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How does surface modification of nanoparticles affect their reactivity and stability in different environments? Conduct an experiment to analyze the impact of varying surface coatings on the behavior of nanoparticles in aqueous and non-aqueous solutions.
asked
Feb 14
in
Surface Chemistry
0
votes
1
answer
8
views
How do chlorofluorocarbons (CFCs) break down ozone molecules and what is the mechanism of this process?
asked
Feb 12
in
Environmental Chemistry
0
votes
1
answer
9
views
How can the properties of liquid crystals be optimized for display technology, considering factors such as viewing angle, color accuracy, response time, and energy efficiency?
asked
Feb 10
in
Materials Chemistry
0
votes
1
answer
11
views
How can the Haber process be optimized to produce the maximum yield of ammonia gas, considering the factors of pressure, temperature, and reactant concentration?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
46
views
Determine the bond order for the oxygen molecule using molecular orbital theory. Show all calculations and explain how the bond order relates to the stability of the molecule.
asked
Feb 4
in
Chemical bonding
0
votes
1
answer
42
views
Design a novel drug delivery system using graphene oxide as the carrier material. Describe the synthesis method and characterize the physicochemical properties of the drug-loaded graphene oxide by using various techniques such as X-ray diffraction, Fourier transform infrared spectroscopy, and zeta potential measurements. Evaluate the drug release properties and compare it with the current drug delivery systems available in the market.
asked
Feb 4
in
Materials Chemistry
0
votes
1
answer
27
views
Calculate the standard enthalpy change for the dissolution of 3 mol of potassium chloride (KCl) in 1000 mL of water, given that the molar enthalpy of dissolution is -17.4 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
53
views
How can we accurately determine the amount of caffeine in a coffee sample using liquid chromatography?
asked
Jan 29
in
Analytical Chemistry
0
votes
1
answer
81
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A chemistry student needs to determine the effect of increasing temperature on the equilibrium position of a chemical reaction in which an exothermic reaction is taking place. Given the balanced chemical equation A + B ⇌ C + heat, the student needs to determine how the concentration of products and reactants will change as the temperature is increased, and explain the observed changes using Le Chatelier's principle.
asked
Jan 22
in
Chemical reactions
0
votes
1
answer
55
views
Why was the term 'sissy' reclaimed by the LGBTQ+ community?
asked
Jan 20
in
Psychology
0
votes
1
answer
34
views
What did the 'marshmallow test' measure?
asked
Jan 20
in
Psychology
0
votes
1
answer
59
views
What is generalisability in relation to theories?
asked
Jan 20
in
Psychology
0
votes
1
answer
61
views
What is Piaget's sensorimotor stage?
asked
Jan 20
in
Psychology
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votes
1
answer
31
views
What is the evolutionary psychology approach's evaluation of visual illusions?
asked
Jan 20
in
Psychology
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