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1
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76
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What is the predicted bond angle in a water molecule and how does it relate to the molecule's unique physical and chemical properties?
answered
Feb 22
in
Chemical bonding
1
answer
90
views
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
1
answer
84
views
What is the effect of varying reactant concentrations on the reaction rate and subsequent safety precautions to be taken in a particular chemical reaction?
answered
Feb 20
in
Chemical kinetics
1
answer
96
views
What is the effect of changes in the concentration of reactants and products on the rate of a chemical reaction that is in equilibrium?
answered
Feb 19
in
Chemical kinetics
1
answer
88
views
How does the chemical composition and structure of polymer-based packaging materials affect their biodegradability and environmental impact?
answered
Feb 18
in
Polymer Chemistry
1
answer
91
views
How does quantum coherence and entanglement affect the properties and behavior of molecular and nanoscale systems, and how can it be utilized in the design and engineering of new materials with desirable properties?
answered
Feb 14
in
Quantum Chemistry
1
answer
82
views
How can we use polymer-based drug delivery systems to improve the efficacy and safety of cancer chemotherapy drugs?
answered
Feb 14
in
Polymer Chemistry
1
answer
99
views
What are the factors affecting the pharmacodynamics of a specific drug in the human body?
answered
Feb 14
in
Medicinal Chemistry
1
answer
123
views
What is the effect of changes in reactant concentration on the reaction rate for a second-order reaction? Provide experimental evidence to support your answer.
answered
Feb 13
in
Chemical kinetics
1
answer
115
views
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
1
answer
98
views
How can density functional theory calculations be used to predict the rate-determining step of a catalytic reaction in order to design more efficient and selective catalysts?
answered
Feb 6
in
Computational Chemistry
1
answer
79
views
How can molecular docking studies be used to design more effective and specific drugs?
asked
Feb 5
in
Computational Chemistry
1
answer
109
views
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
1
answer
92
views
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
1
answer
95
views
How can chemistry educators provide better support for students with learning disabilities in the classroom to improve their understanding and application of chemistry concepts?
answered
Feb 4
in
Chemical education
1
answer
140
views
Design a biodegradable polymer that can be used as a sustainable alternative to single-use plastic bags, and provide a detailed synthesis route for its production.
answered
Feb 3
in
Polymer Chemistry
1
answer
121
views
Calculate the standard enthalpy of formation of carbon dioxide (CO2) using the following data:C(graphite) + O2(g) → CO2(g) ΔH° = -393.5 kJ/mol2H2(g) + O2(g) → 2H2O(l) ΔH° = -572.0 kJ/molHint: Use Hess's law to calculate the standard enthalpy of formation of CO2.
answered
Feb 3
in
ThermoChemistry
1
answer
94
views
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
1
answer
161
views
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
1
answer
144
views
Calculate the bond dissociation energy required to break a carbon-carbon single bond in methane (CH4).
answered
Jan 23
in
ThermoChemistry
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