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0
votes
1
answer
33
views
What is the primary structure of proteins and how does it affect their biological function?
asked
Feb 22
in
Organic Chemistry
0
votes
1
answer
22
views
What is the reaction mechanism for the preparation of 2,4-dinitrophenylhydrazine from hydrazine and 2,4-dinitrochlorobenzene?
asked
Feb 22
in
Chemical synthesis
0
votes
1
answer
29
views
What is the effect of temperature on the critical micelle concentration (CMC) of a surfactant and how does it relate to the physical properties of the micelles formed?
asked
Feb 20
in
Surface Chemistry
0
votes
1
answer
34
views
What is the net ATP production from the complete oxidation of one molecule of glucose in the citric acid cycle and oxidative phosphorylation?
asked
Feb 18
in
BioChemistry
0
votes
1
answer
24
views
How does the addition of carbon nanotubes (CNTs) as a reinforcement material affect the mechanical properties of polymer-based composites used in aerospace applications?
asked
Feb 17
in
Polymer Chemistry
0
votes
1
answer
39
views
How can we reliably predict the color of inorganic compounds based on their molecular structure and electronic transitions?
asked
Feb 14
in
Inorganic Chemistry
0
votes
1
answer
103
views
How does increasing the pressure affect the equilibrium position of the reaction N2(g) + 3H2(g) ⇌ 2NH3(g)?
asked
Feb 13
in
Chemical equilibrium
0
votes
1
answer
42
views
How can the alignment of liquid crystal molecules be effectually manipulated to increase the viewing angle and contrast of displays without impacting their energy efficiency?
asked
Feb 6
in
Materials Chemistry
0
votes
1
answer
108
views
What is the effect of changing the concentration of ligands on the formation of a complex ion of copper sulfate? Calculate the concentration of the complex ion [Cu(NH3)4(H2O)]2+ when 50 mL of a 0.1 M solution of ammonia is added to 50 mL of a 0.1 M solution of copper sulfate. The formation constant for the complex ion is 1.1 x 10^12.
asked
Feb 3
in
Chemical equilibrium
0
votes
1
answer
104
views
How do changes in reactant concentration affect the rate and efficiency of a chemical reaction, and how can this knowledge be applied to optimize reaction conditions in industry?
asked
Jan 31
in
Chemical kinetics
0
votes
1
answer
89
views
Identify two complex chemical concepts that you find difficult to understand, and describe a strategy that you use to help comprehend and master the concepts.
asked
Jan 31
in
Chemical education
0
votes
1
answer
77
views
Calculate the enthalpy change of dissolving 10 grams of NaCl in 100 mL of water, assuming the resultant solution has a density of 1.0 g/mL and assuming that the heat evolved is absorbed by the water. Given: the enthalpy of hydration of NaCl is -787 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
83
views
Calculate the enthalpy change for the reaction: 2H₂(g) + O₂(g) → 2H₂O(g) The enthalpy of formation of H₂O is -242 kJ/mol, and the enthalpy of formation of O₂ is 0 kJ/mol.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
79
views
Assuming that the concentration of Cu2+ ions in a solution is 0.25 M, the concentration of Ag+ ions in another solution is 0.50 M, and the standard reduction potential of Cu2+(aq) + 2e- → Cu(s) is +0.34 V and that of Ag+(aq) + e- → Ag(s) is +0.80 V, calculate the current density when the two solutions are separated by a salt bridge and connected by a wire.
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
114
views
A chemistry student wants to prepare a solution that contains 25% ethanol (by volume) and the rest is water. The enthalpy of mixing for ethanol and water is -21.2 kJ/mol. How much heat is evolved when the student makes 500 mL of the solution?
asked
Jan 22
in
ThermoChemistry
0
votes
1
answer
57
views
Why was the term 'crip' reclaimed by the disability rights movement?
asked
Jan 20
in
Psychology
0
votes
1
answer
61
views
Where was the Milgram Experiment conducted?
asked
Jan 20
in
Psychology
0
votes
1
answer
117
views
What is a meta-analysis?
asked
Jan 20
in
Psychology
0
votes
1
answer
129
views
How does inferential statistics help us draw conclusions about populations?
asked
Jan 17
in
Psychology
0
votes
1
answer
65
views
What is the role of context in perceptual illusions?
asked
Jan 15
in
Psychology
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