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How does the molecular weight and chemical composition of polymeric materials affect the mechanical properties and printability in Fused Deposition Modeling (FDM) 3D printing technology?
asked
Feb 21
in
Materials Chemistry
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votes
1
answer
109
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How can we design and synthesize a highly efficient and stable polymer-based optical material that exhibits strong fluorescence emission under UV light for potential applications in organic light-emitting devices (OLEDs)?
asked
Feb 12
in
Polymer Chemistry
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1
answer
71
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How can molecular docking studies be used to design more effective and specific drugs?
asked
Feb 5
in
Computational Chemistry
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1
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103
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How can chemistry teachers provide better support and accommodations for students with learning disabilities to effectively learn and understand chemistry concepts and apply them in laboratory experiments?
asked
Feb 5
in
Chemical education
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votes
1
answer
85
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How can small molecule inhibitors be designed and synthesized to target specific inflammatory pathways and effectively treat inflammatory diseases such as rheumatoid arthritis or Crohn's disease?
asked
Feb 5
in
Medicinal Chemistry
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85
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Calculate the enthalpy change of the polymerization reaction of ethylene, given that the heat of combustion of ethylene is -1411 kJ/mol and the enthalpy of formation of ethylene is +52.3 kJ/mol. The balanced equation for the polymerization of ethylene is:nC2H4 -> [-C2H4-]nAssume complete polymerization and that the standard enthalpy of formation of the polymer is negligible.
asked
Jan 23
in
ThermoChemistry
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153
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Calculate the enthalpy change of the polymerization of styrene using the following information: Reactants: - Styrene: C8H8 (l) - Peroxide initiator: C6H5OOC(CH3)3 (l) Products: - Polystyrene: (C8H8)n (s)- Byproduct: CO2 (g)Given information: - Heat of formation of CO2 (g) = -393.5 kJ/mol - Mass of styrene used = 50 g - Molarity of the initiator solution = 0.3 M - Volume of the initiator solution used = 25 mL - Density of the initiator solution = 0.89 g/mL - The reaction is carried out at a constant pressure of 1 atm and a temperature of 25°C.
asked
Jan 23
in
ThermoChemistry
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137
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A chemist is attempting to electroplate copper onto a steel surface using a copper sulfate solution. The standard reduction potential for this reaction is -0.34 V, but the scientist is only seeing a voltage of -0.53 V. Calculate the overpotential for this electrochemical reaction.
asked
Jan 22
in
ElectroChemistry
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1
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136
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What is the balanced chemical equation for the reaction between potassium permanganate (KMnO4) and hydrogen peroxide (H2O2) in acidic medium?
asked
Jan 21
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Inorganic Chemistry
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1
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55
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Why do psychologists use double-blind procedures in research?
asked
Jan 20
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Psychology
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1
answer
57
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Who created the PERMA model?
asked
Jan 20
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Psychology
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1
answer
62
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What is decolonisation in relation to indigenous psychology?
asked
Jan 17
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Psychology
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0
answers
107
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When did the Australian government launch the Fly-In Fly-Out Mental Health Support Scheme?
asked
Jan 17
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Psychology
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1
answer
109
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According to Self-Categorisation theory, how does intergroup differentiation occur?
asked
Jan 16
in
Psychology
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1
answer
58
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How do we assess the internal consistency of psychodynamic theories?
asked
Jan 16
in
Psychology
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1
answer
62
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Who developed the theory of cultural dimensions?
asked
Jan 15
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Psychology
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1
answer
107
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Who proposed the social exchange theory?
asked
Jan 15
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Psychology
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1
answer
103
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What is 'heredity' in relation to intelligence?
asked
Jan 15
in
Psychology
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1
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120
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Who believes emotions shape cognition and behaviours?
asked
Jan 15
in
Psychology
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138
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Where in discursive institutionalism do scholars focus on the relationship between policy and identity?
asked
Jan 15
in
Psychology
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