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User ArlenBieber1
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What is the bond dissociation energy of methane (CH4)? Use the given bond energies: C-H bond energy = 413 kJ/mol and C-C bond energy = 348 kJ/mol.
answered
Feb 18
in
Chemical bonding
0
votes
45
views
What is the boiling point of magnesium oxide (MgO) at a pressure of 1 atm? Show the calculation steps and provide the answer in degrees Celsius.
answered
Feb 17
in
Inorganic Chemistry
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65
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What is the hybridization of the nitrogen atom in the compound NH3?
answered
Feb 13
in
Inorganic Chemistry
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54
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What type of intermolecular forces are present in a liquid sample of ethanol?
answered
Feb 13
in
Chemical bonding
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30
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How does the photochemical activity of enantiomers differ from each other and what is the significance of this difference in terms of their biological activity and experimental applications in fields such as pharmacology and material science?
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Feb 13
in
PhotoChemistry
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47
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How do the chemical dispersants used to clean up oil spills affect the surrounding environment and what are the most effective and least damaging types of dispersants to use?
answered
Feb 12
in
Environmental Chemistry
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35
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How can metabolomics and systems biology be used to determine the effect of a specific drug on the metabolic pathways of a cell?
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Feb 5
in
BioChemistry
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93
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What is the role of AMP-activated protein kinase (AMPK) in regulating glucose metabolism during exercise?
answered
Jan 31
in
BioChemistry
0
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87
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A student needs to determine the diffusion coefficient of a gas in a liquid by measuring the rate of diffusion using a diffusion cell. If the student knows the initial concentration and final concentration of the gas in the cell, and the time it took for diffusion to occur, what is the diffusion coefficient of the gas in the liquid?
answered
Jan 22
in
Physical Chemistry
0
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85
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A laboratory assistant is asked to prepare a buffer solution with a pH of 7.10 using acetic acid (CH3COOH) and sodium acetate (NaCH3COO). If the laboratory assistant has 250 mL of 0.20 M acetic acid, how many grams of NaCH3COO will be needed to make the buffer solution?
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Jan 22
in
Chemical reactions
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90
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A chemistry student wants to determine the effect of adding a buffer to a solution containing acetic acid (CH3COOH) and its conjugate base (CH3COO-), which is in equilibrium with its ionized form (H+ and CH3COO-). The initial concentration of acetic acid is 0.2 M and the pH of the solution is 4.5. If the student adds a buffer solution containing equal amounts of acetic acid and sodium acetate (NaCH3COO), what will be the new pH of the solution and the extent of shift in equilibrium position?
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Jan 22
in
Chemical equilibrium
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87
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A brass alloy electrode with an area of 5 cm² is immersed in a 0.5 M NaCl solution at 25°C. Given that the standard potential of the electrode is -0.35 V versus a standard hydrogen electrode, calculate the corrosion current density of the electrode in the given environment using Tafel extrapolation.
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Jan 22
in
ElectroChemistry
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98
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Who funded Dr. Amanda Biggs' study?
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Jan 20
in
Psychology
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62
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According to the social identity theory, why do individuals discriminate against out-group members?
answered
Jan 17
in
Psychology
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50
views
When might cognitive dissonance occur?
answered
Jan 17
in
Psychology
0
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70
views
What is an example of cognitive behavioural therapy in pain management?
answered
Jan 16
in
Psychology
0
votes
41
views
Who developed the biosocial theory of aggression?
answered
Jan 16
in
Psychology
0
votes
104
views
How does the social learning theory of aggression help us understand aggression?
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Jan 15
in
Psychology
0
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74
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Why was the Social Cognitive Theory developed?
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Jan 15
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Psychology
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73
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What is the 'ingroup bias'?
answered
Jan 14
in
Psychology
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