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1
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24
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How does the size and shape of nanoparticles affect their optical and electronic properties?
asked
1 day
ago
in
Physical Chemistry
0
votes
1
answer
22
views
What is the polarity of the bond between nitrogen and chlorine in the molecule NCl3?
asked
3 days
ago
in
Chemical bonding
0
votes
1
answer
19
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What is the optimal composition of a metal alloy for use in the construction of a high-temperature turbine blade for aerospace applications, and what properties of the alloy are responsible for its superior performance under these conditions?
asked
3 days
ago
in
Materials Chemistry
0
votes
1
answer
29
views
How does the body biosynthesize the non-essential amino acids and what are the chemical reactions involved?
asked
5 days
ago
in
BioChemistry
0
votes
1
answer
24
views
What temperature, pressure, and chemical conditions are required for the Haber process to produce ammonia at an optimum rate for fertilizer production, given a certain amount of reactants?
asked
5 days
ago
in
Chemical engineering
0
votes
1
answer
27
views
What is the electronegativity difference between a nitrogen atom (EN = 3.04) and an oxygen atom (EN = 3.44)?
asked
5 days
ago
in
Chemical bonding
0
votes
1
answer
22
views
How does the chemical structure of metallofullerenes and metalloclusters affect their magnetic properties?
asked
Feb 18
in
Coordination Chemistry
0
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1
answer
32
views
How can we optimize the critical temperature and magnetic field tolerance of superconducting materials for practical applications such as electricity transmission and high-speed computing?
asked
Feb 14
in
Materials Chemistry
0
votes
1
answer
28
views
What is the percentage composition of copper (Cu), iron (Fe), and sulfur (S) in a sample of pyrite? Use elemental analysis to determine the amount of each element present in the sample and calculate the percentage composition by mass.
asked
Feb 13
in
Analytical Chemistry
0
votes
1
answer
30
views
What is the oxidation state of sulfur in Na2S2O3 (sodium thiosulfate)?
asked
Feb 13
in
Chemical reactions
0
votes
1
answer
29
views
How can we improve the compatibility of polymer blends and prevent phase separation?
asked
Feb 13
in
Polymer Chemistry
0
votes
1
answer
42
views
How can universities and institutions improve diversity in the chemistry field and create more opportunities for underrepresented minorities to succeed?
asked
Feb 13
in
Chemical education
0
votes
1
answer
6
views
What specific materials and factors need to be considered in designing a system for the production of hydrogen fuel to ensure maximum efficiency and sustainability?
asked
Feb 12
in
Chemical engineering
0
votes
1
answer
48
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Calculate the standard Gibbs free energy change for the following electrochemical reaction at 25°C:Cu(s) + 2Ag⁺(aq) → Cu²⁺(aq) + 2Ag(s) Given: E°cell = 0.46 V, F = 96,500 C/mol, R = 8.314 J/K·mol, and the standard reduction potentials at 25°C are Cu²⁺(aq) + 2e⁻ → Cu(s) (E°red = 0.34 V) and Ag⁺(aq) + e⁻ → Ag(s) (E°red = 0.80 V).
asked
Feb 3
in
ElectroChemistry
0
votes
1
answer
60
views
What is the Dipole Moment of Nitrogen Molecule Using Ab Initio Calculations?
asked
Jan 31
in
Computational Chemistry
0
votes
1
answer
88
views
What is the predicted boiling point of a substance that consists of molecules with strong hydrogen bonding compared to a substance with weak London dispersion forces?
asked
Jan 30
in
Chemical bonding
0
votes
1
answer
49
views
A copper rod with a surface area of 5 cm² is coupled with an iron rod with a surface area of 10 cm² to form a galvanic cell. When the circuit is closed, the current flows for 2 hours and the weight loss of the iron rod was found to be 0.58 g. Determine the corrosion rate of the iron rod in millimeters per year (mm/yr) assuming a density of 7.86 g/cm³ for the iron.
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
46
views
According to the gender schema theory, how do individuals learn gender roles?
asked
Jan 20
in
Psychology
0
votes
1
answer
10
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Why was Rosenhan's study on psychiatric hospitals significant?
asked
Jan 20
in
Psychology
0
votes
1
answer
76
views
Why is understanding gender identity important in studying human sexuality?
asked
Jan 17
in
Psychology
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