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0
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27
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How do the different properties of polymers, such as molecular weight and crosslink density, affect their suitability for use in 3D printing?
answered
Feb 22
in
Materials Chemistry
0
votes
30
views
What is the optimal reaction conditions and yield for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas through the process of chemical synthesis?
answered
Feb 22
in
Chemical synthesis
0
votes
29
views
How does the Monte Carlo simulation method help in predicting the phase transition temperatures of a substance and how does it compare to experimental methods of phase transition temperature determination in computational chemistry?
answered
Feb 21
in
Computational Chemistry
0
votes
28
views
What is the molecular geometry of the molecule CF4?
answered
Feb 21
in
Chemical bonding
0
votes
27
views
How does the calculation of molecular orbitals provide information about the electronic structure and chemical properties of a molecule, and how can this information be used to predict its reactivity in chemical reactions?
answered
Feb 18
in
Quantum Chemistry
0
votes
24
views
What is the polarity of the bond between oxygen and hydrogen in a water molecule? How does it contribute to the overall polarity of the molecule?
answered
Feb 18
in
Chemical bonding
0
votes
68
views
How does the drug 'Ibuprofen' alleviate pain and inflammation in the body?
answered
Feb 13
in
Medicinal Chemistry
0
votes
34
views
How to design a chemical process for the production of a new natural/organic cosmetic product that meets all necessary quality and performance standards, while also ensuring its environmental sustainability and cost-effectiveness?
answered
Feb 12
in
Chemical engineering
0
votes
51
views
How can the mechanical properties of polymer-based composites be optimized for use in aerospace applications, specifically in regards to improving the strength, stiffness, and heat resistance? What types of polymers and reinforcing materials are most effective for achieving these properties, and how can they be processed to achieve optimal performance?
answered
Feb 10
in
Polymer Chemistry
0
votes
35
views
How can chemistry students with limited access to chemistry-related extracurricular activities supplement their learning and practical experience outside of the classroom?
answered
Feb 5
in
Chemical education
+1
vote
61
views
Calculate the lattice energy of MgO (magnesium oxide) given that the ionic charges of Mg and O are +2 and -2, respectively, and the distance between the ions is 2.1 Å.
answered
Jan 23
in
Inorganic Chemistry
0
votes
78
views
Calculate the equilibrium constant for the electrochemical reaction: Zn(s) + 2H^+(aq) → Zn^2+(aq) + H2(g) when the concentration of Zn^2+ is 0.25 M, [H^+] is 2.5 × 10^-3 M, and the pressure of H2 is 0.8 atm at 298 K.
answered
Jan 23
in
ElectroChemistry
0
votes
100
views
A student is given a galvanic cell consisting of a zinc electrode and a copper electrode. If the concentration of zinc ions in the zinc half-cell is 0.1 M and the concentration of copper ions in the copper half-cell is 1.0 M, what is the corrosion potential of the zinc electrode at standard conditions? (Assume that the standard electrode potential of copper is +0.34 V and that of zinc is -0.76 V.)
answered
Jan 22
in
ElectroChemistry
0
votes
94
views
A 0.25 mol/L solution of ethanoic acid (CH3COOH) is mixed with a 0.40 mol/L solution of sodium acetate (CH3COONa). The equilibrium constant for the reaction CH3COOH + NaCH3COO ⇌ CH3COONa + H2O is 1.8 x 10^-5. What is the concentration of CH3COONa at equilibrium?
answered
Jan 22
in
Chemical equilibrium
0
votes
109
views
What is the pH of a 0.1 M solution of acetic acid (CH3COOH) at 25°C, given that the Ka of acetic acid is 1.8 x 10^-5?
answered
Jan 21
in
Organic Chemistry
0
votes
46
views
When does the fear appeal strategy work best?
answered
Jan 20
in
Psychology
0
votes
99
views
How does the social learning theory explain the role of cultural norms in violence against women?
answered
Jan 20
in
Psychology
0
votes
51
views
Why is single-blind research used?
answered
Jan 20
in
Psychology
0
votes
43
views
When applying the behaviourist theory in teaching, what is the role of reinforcement?
answered
Jan 20
in
Psychology
0
votes
34
views
Why is ecological systems theory considered a systems theory?
answered
Jan 17
in
Psychology
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