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1
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How do the photochemical properties of gold nanoparticles differ from those of silver nanoparticles when exposed to UV radiation in a solution containing a reducing agent?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
28
views
What is the critical micelle concentration (CMC) of sodium lauryl sulfate (SLS) in water at room temperature and what factors affect its value?
asked
Feb 19
in
Surface Chemistry
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votes
1
answer
37
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How does the chemical structure of a drug affect its pharmacodynamics in the body? Provide examples of different drug classes and their mechanisms of action.
asked
Feb 18
in
Medicinal Chemistry
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votes
1
answer
52
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What effect will increasing the pressure have on the equilibrium position of a reaction where the number of moles of gas increases? Provide an explanation based on Le Chatelier's principle.
asked
Feb 13
in
Chemical equilibrium
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votes
1
answer
35
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What novel drug development strategies can be used to design effective treatments for viral infections with a focus on broad-spectrum antivirals?
asked
Feb 12
in
Medicinal Chemistry
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1
answer
32
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How can the knowledge of enzymatic mechanisms and metabolic pathways be applied to design drugs for treating metabolic disorders such as diabetes or obesity? Specifically, what properties or strategies should be considered in order to develop drugs that can selectively target and modulate key enzymes or metabolic pathways involved in disease pathophysiology?
asked
Feb 7
in
Medicinal Chemistry
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votes
1
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65
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Calculate the standard enthalpy change for the combustion of methane gas at standard conditions, given the following balanced chemical equation:CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l)Note: Standard conditions refer to a temperature of 25°C and a pressure of 1 atm.
asked
Feb 3
in
Chemical thermodynamics
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1
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104
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Calculate the standard electrode potential for the reaction Ag+ (aq) + Cu (s) → Ag (s) + Cu2+ (aq) given that the standard electrode potentials for Ag+ (aq) + e- → Ag (s) and Cu2+ (aq) + 2e- → Cu (s) are 0.80 V and 0.34 V respectively.
asked
Feb 3
in
Chemical thermodynamics
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1
answer
63
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Calculate the equilibrium constant for a reaction involving a weak oxidizing agent where the concentration of the oxidizing agent is 0.1 M and the concentration of the reduced species is 0.05 M at equilibrium. The balanced chemical equation of the reaction is given as follows:OX + 2 e- ⇌ REDwhere OX is the weak oxidizing agent and RED is the reduced species.
asked
Jan 23
in
Chemical equilibrium
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1
answer
61
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Calculate the enthalpy of solution for dissolving 5 grams of NaCl in 100 mL of water if the final temperature of the solution is 25°C and the initial temperature of the water was 20°C. The enthalpy of fusion of NaCl is -3.0 kJ/mol and the specific heat capacity of the solution is 4.18 J/g°C.
asked
Jan 23
in
ThermoChemistry
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1
answer
66
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Calculate the enthalpy change when solid sodium hydroxide (NaOH) is dissolved into water, given that the desorption enthalpy of NaOH is 44.51 kJ/mol and the molar heat of solution is -44.51 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
96
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What is the product of the electrophilic addition reaction between propene and hydrogen bromide in the presence of a peroxide initiator?
asked
Jan 21
in
Organic Chemistry
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votes
1
answer
61
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According to the behaviourist approach, how do individuals acquire behaviour?
asked
Jan 20
in
Psychology
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1
answer
43
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According to the social desirability bias, what is response bias?
asked
Jan 20
in
Psychology
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votes
1
answer
61
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What is the role of psychotherapy in addiction treatment?
asked
Jan 20
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Psychology
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votes
1
answer
74
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What is a key factor in resolving intergroup conflict?
asked
Jan 20
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Psychology
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1
answer
67
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In contrast, how does narrative therapy see the role of language in shaping the individual's experience?
asked
Jan 20
in
Psychology
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votes
1
answer
144
views
According to decision-making research, what role do emotions play in decision making?
asked
Jan 17
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Psychology
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1
answer
32
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What is the strengths of ACT?
asked
Jan 16
in
Psychology
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votes
1
answer
55
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Who developed the concept of operant conditioning?
asked
Jan 16
in
Psychology
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