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How does the molecular weight of a polymer affect its suitability for use in 3D printing, and what methods can be used to control and optimize the molecular weight for this application?
asked
Feb 21
in
Materials Chemistry
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votes
1
answer
35
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What is the effect of varying ratios of metals in an alloy on its strength and ductility, and which alloy composition would be most suitable for use in high-stress aerospace applications?
asked
Feb 20
in
Materials Chemistry
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votes
1
answer
42
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What is the crystal structure of sodium chloride (NaCl) and how does it relate to its physical properties such as melting and boiling point, conductivity, and solubility in water?
asked
Feb 14
in
Physical Chemistry
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1
answer
42
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How can we optimize the process parameters for the large-scale production of polypropylene using a Ziegler-Natta catalyst system?
asked
Feb 14
in
Chemical engineering
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votes
1
answer
51
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How can we design a new metal-organic framework with increased water stability and enhanced gas adsorption properties for potential use in gas storage and industrial applications?
asked
Feb 12
in
Coordination Chemistry
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1
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31
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How does the coordination chemistry of metalloenzymes and metalloproteins affect the overall function of the protein or enzyme? Provide specific examples to support your answer.
asked
Feb 12
in
Coordination Chemistry
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votes
1
answer
36
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How does the chirality affect the photochemical properties of molecules? Provide a specific example of a chiral molecule and explain its behavior in a photochemical reaction.
asked
Feb 12
in
PhotoChemistry
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votes
1
answer
44
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How can the structure of a virus be used to design drugs that target specific types of viruses, with a focus on preventing infections and reducing the severity of symptoms?
asked
Feb 11
in
Medicinal Chemistry
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votes
1
answer
36
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How can the electrical conductivity of conductive polymers be optimized for use in flexible electronics, while maintaining the desired mechanical properties of the material?
asked
Feb 7
in
Materials Chemistry
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votes
1
answer
41
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How can chemistry educators better support students with learning disabilities in understanding the abstract concepts and complex equations involved in stoichiometry?
asked
Feb 4
in
Chemical education
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1
answer
62
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Determine the standard enthalpy of formation for propane (C3H8) using the following values: - C(graphite) + O2(g) → CO2(g) ΔH° = -393.5 kJ/mol- 2H2(g) + O2(g) → 2H2O(l) ΔH° = -572.4 kJ/mol- C3H8(g) + 5O2(g) → 3CO2(g) + 4H2O(l) ΔH° = -2220 kJ/mol
asked
Feb 4
in
Chemical thermodynamics
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79
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What is the structure of compound X based on its proton NMR spectrum, which shows a singlet at 1.2 ppm with an integration of 3, a doublet at 2.5 ppm with an integration of 2, and a quartet at 3.7 ppm with an integration of 1?
asked
Jan 31
in
Analytical Chemistry
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121
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A chemistry student needs to determine the conditions at which a pure substance will change from solid to liquid phase. The substance in question has a melting point of 120 °C and a heat of fusion of 35 kJ/mol. How much heat is required to melt 100 grams of the substance at its melting point? And, what is the temperature at which the substance will start to solidify if the ambient pressure is 1 atm and the substance has cooled from its liquid phase at 150 °C to its solid phase?
asked
Jan 22
in
Physical Chemistry
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votes
1
answer
139
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Where was the first study on acceptance and commitment therapy ACT conducted?
asked
Jan 20
in
Psychology
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1
answer
35
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What is the significance of storytelling in indigenous psychology?
asked
Jan 14
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Psychology
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1
answer
79
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What is the difference between rational and emotional decision making?
asked
Jan 14
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Psychology
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1
answer
36
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What are some effective sleep hygiene practices?
asked
Jan 14
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Psychology
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votes
1
answer
125
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Who developed the concept of authenticity in existential therapy?
asked
Jan 13
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Psychology
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votes
1
answer
46
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What is the process that moves particles by rolling or dragging along the bottom of the water?
asked
Jan 7
in
Science
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votes
1
answer
62
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What is the name of a joint in which one bone rotates in relation to another bone?
asked
Jan 7
in
Science
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