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User PearlEaston
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What is the mechanism governing energy transfer between molecules in a gas-phase reaction at varying temperatures and pressures? Additionally, what is the relationship between the reaction kinetics and molecular dynamics of the system?
asked
Feb 20
in
Quantum Chemistry
0
votes
1
answer
79
views
How do the mechanical, and biological properties of collagen-based biomaterials vary with changes in the collagen concentration and crosslinking density for use in tissue engineering applications?
asked
Feb 20
in
Materials Chemistry
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1
answer
68
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What is the bond dissociation energy of a H-H bond in H2 molecule in kJ/mol, given that the bond length of H-H is 74 pm and the energy required to dissociate the bond is 432 kJ/mol?
asked
Feb 18
in
Chemical bonding
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1
answer
82
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How do different surfactants in cleaners and detergents affect the surface tension of water?
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
120
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What can be done to improve the availability of chemistry textbooks and resources for students in underprivileged and rural areas who may not have access to adequate educational materials?
asked
Feb 13
in
Chemical education
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votes
1
answer
124
views
How does the drug ibuprofen alleviate pain and reduce inflammation in the body at the molecular level?
asked
Feb 13
in
Medicinal Chemistry
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1
answer
102
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How can we design a drug that targets and inhibits the replication of the Zika virus, while not affecting healthy human cells?
asked
Feb 12
in
Medicinal Chemistry
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votes
1
answer
82
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How can the lack of emphasis on safety protocols in chemistry labs affect the physical and mental well-being of students, and what can be done to address and prevent any potential hazards?
asked
Feb 7
in
Chemical education
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votes
1
answer
74
views
How can the environmental impact of polymer-based packaging materials be reduced using sustainable and biodegradable alternatives?
asked
Feb 7
in
Polymer Chemistry
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votes
1
answer
139
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Determine the standard enthalpy of formation of methane (CH4) given the following information: The standard enthalpy of formation of CO2 and H2O are -393.5 kJ/mol and -285.8 kJ/mol, respectively. The combustion of 0.50 g of methane in a bomb calorimeter resulted in a 1.20°C temperature increase of the surrounding water. The heat capacity of the bomb calorimeter is 5.85 kJ/°C.
asked
Feb 4
in
Chemical thermodynamics
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votes
1
answer
155
views
Calculate the standard enthalpy change for the neutralization reaction between 50.0 mL of 0.100 M hydrochloric acid and 75.0 mL of 0.080 M sodium hydroxide. Given: the specific heat capacity of the solution is 4.18 J/g°C and the density of the solution is 1.00 g/mL. The balanced chemical equation for the reaction is HCl (aq) + NaOH (aq) → NaCl (aq) + H2O (l).
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
128
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What is the concentration of an HCl solution if 25.00 mL of the solution requires 35.80 mL of 0.100 M NaOH to reach the endpoint during titration?
asked
Jan 30
in
Analytical Chemistry
+1
vote
1
answer
94
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Calculate the magnetic susceptibility of water molecule using Quantum Chemistry methods.
asked
Jan 23
in
Quantum Chemistry
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votes
1
answer
192
views
According to the social identity theory, what is the relevance of intergroup comparison?
asked
Jan 17
in
Psychology
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votes
1
answer
67
views
What is the role of empathy in reducing social erasure?
asked
Jan 17
in
Psychology
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votes
1
answer
48
views
What is iconic memory?
asked
Jan 17
in
Psychology
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votes
1
answer
50
views
When was the social identity theory first introduced?
asked
Jan 16
in
Psychology
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votes
1
answer
54
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When evaluating the validity of a cognitive behavioural theory, what is meant by construct validity?
asked
Jan 15
in
Psychology
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votes
1
answer
89
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When was the 'Stereotype Content Model' introduced?
asked
Jan 15
in
Psychology
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1
answer
61
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Why do we often forget the details of our sensory experiences?
asked
Jan 15
in
Psychology
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