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1
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35
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What are the significant discoveries and contributions of the early chemists in the evolution of chemistry, and how did they impact the development of modern chemistry?
asked
Feb 24
in
Chemical education
0
votes
1
answer
28
views
What is the effect of particle size on the surface structure and reactivity of copper nanoparticles?
asked
Feb 22
in
Computational Chemistry
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votes
1
answer
27
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What is the effect of pressure on the rate of the reaction between hydrogen gas and iodine gas, and how can this effect be explained by collision theory?
asked
Feb 19
in
Chemical kinetics
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votes
1
answer
27
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What is the crystal structure of NaCl? How does it affect the physical properties of NaCl, such as its melting point and solubility, and what is the significance of this crystal structure in industrial applications of NaCl?
asked
Feb 19
in
Physical Chemistry
0
votes
1
answer
36
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How does the coordination chemistry of metalloenzymes and metalloproteins affect their biological function?
asked
Feb 19
in
Coordination Chemistry
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votes
1
answer
34
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How does the addition of an external magnetic field affect the electronic and magnetic properties of a molecular magnet?
asked
Feb 17
in
Quantum Chemistry
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votes
1
answer
50
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How does hydrogen bonding affect the properties and interactions of biomolecules such as proteins and nucleic acids in bioorganic chemistry? Provide specific examples to support your answer.
asked
Feb 13
in
Organic Chemistry
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votes
1
answer
29
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How can the chemical engineers design and optimize a system to produce the flavor compounds of a specific fruit, while considering factors such as raw material selection, reaction conditions, separation techniques, and cost-effectiveness?
asked
Feb 6
in
Chemical engineering
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votes
1
answer
42
views
How can polymer-based sensors be utilized to detect specific gases in an industrial process environment?
asked
Feb 5
in
Polymer Chemistry
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votes
1
answer
76
views
Determine the bond order of the molecule CO using molecular orbital theory. Show all the molecular orbital diagrams and explain why the molecule is or is not expected to be stable.
asked
Feb 4
in
Chemical bonding
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votes
1
answer
38
views
Consider the reaction of hydrogen gas (H2) and iodine gas (I2) to form hydrogen iodide (HI) at a certain temperature. If the initial concentrations of hydrogen and iodine are [H2] = 0.5 M and [I2] = 0.3 M, and the equilibrium concentration of hydrogen iodide is [HI] = 0.1 M, what is the value of the reaction quotient (Qc) for this reaction at this temperature?
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
77
views
Calculate the standard enthalpy change for the vaporization of 100 g of water at 100°C given that the enthalpy of vaporization of water is 40.7 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
89
views
What is the effect of adding a catalyst on the equilibrium position of a redox reaction between potassium permanganate and oxalic acid? Provide a detailed explanation and calculations to support your answer.
asked
Jan 30
in
Chemical equilibrium
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votes
1
answer
75
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Calculate the melting point of a solution containing 20 g of benzoic acid (C6H5COOH) and 80 g of naphthalene (C10H8). The melting points of pure benzoic acid and naphthalene are 122.4 °C and 80.2 °C, respectively. The molal freezing point depression constant for naphthalene is 6.8°C/m.
asked
Jan 23
in
Physical Chemistry
0
votes
1
answer
43
views
According to the social identity theory, what is the basis of our self-concept?
asked
Jan 20
in
Psychology
0
votes
1
answer
32
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Please compare and contrast the ethics of using vulnerable and non-vulnerable populations in research.
asked
Jan 20
in
Psychology
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votes
1
answer
49
views
Why is it important to ensure that research is conducted ethically?
asked
Jan 17
in
Psychology
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votes
1
answer
46
views
Who is known for social learning theory?
asked
Jan 17
in
Psychology
0
votes
1
answer
41
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Please list some of the challenges of conducting cross-cultural research.
asked
Jan 16
in
Psychology
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votes
1
answer
85
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How has cumulative research contributed to the evaluation of animal psychology?
asked
Jan 16
in
Psychology
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