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How do the properties of the catalyst and the reaction conditions affect the rate of a heterogeneous catalytic reaction? Provide a detailed explanation with examples.
asked
5 days
ago
in
Surface Chemistry
0
votes
1
answer
25
views
How does the photochemical behavior of a coordination compound (such as cisplatin) change when it is subjected to different wavelengths of light and how does this affect its use as a chemotherapeutic agent?
asked
5 days
ago
in
PhotoChemistry
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votes
1
answer
28
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What is the effect of solvent polarity on the fluorescence intensity of a specific fluorescent dye molecule?
asked
Feb 19
in
PhotoChemistry
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votes
1
answer
25
views
What is the critical micelle concentration (CMC) and how does it vary with temperature and the nature of surfactants? Investigate and compare the CMC of two different surfactants and analyze the factors that affect their behavior during micelle formation.
asked
Feb 19
in
Surface Chemistry
0
votes
1
answer
28
views
What is the balanced chemical equation for the neutralization reaction between sulfuric acid and sodium hydroxide?
asked
Feb 17
in
Chemical reactions
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votes
1
answer
37
views
How do the properties of polyurethane change with varying ratios of diisocyanate and polyol in the chemical synthesis process, and how do these changes affect the performance and potential applications of the resulting material?
asked
Feb 14
in
Chemical synthesis
0
votes
1
answer
40
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What are the unique electronic properties of graphene that make it a potential candidate for electronic devices and how do these properties compare to those of traditional semiconductors like silicon?
asked
Feb 13
in
Materials Chemistry
0
votes
1
answer
25
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How can we control the photochromic behavior of a material by modifying its molecular structure, and what are the key photochemical properties that need to be considered?
asked
Feb 12
in
PhotoChemistry
0
votes
1
answer
35
views
How can the sensitivity, selectivity, and response time of a polymer-based gas sensor be optimized?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
54
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How can the process conditions, such as temperature and pressure, be optimized to increase the yield of a specific industrial gas in its production?
asked
Feb 10
in
Chemical engineering
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votes
1
answer
52
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Determine the molecular geometry and bond angles of a water molecule using the Valence Shell Electron Pair Repulsion (VSEPR) theory.
asked
Feb 4
in
Quantum Chemistry
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votes
1
answer
31
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Consider a system that consists of water and sodium chloride (NaCl) at room temperature and atmospheric pressure. The student is asked to determine the minimum amount of NaCl that needs to dissolve in 100 grams of water in order to form a saturated solution. The student should also calculate the molar solubility of NaCl in the solution.
asked
Feb 3
in
Physical Chemistry
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1
answer
53
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Calculate the standard enthalpy change for the sublimation of iodine (I2) given that the enthalpy of fusion for iodine is 15.52 kJ/mol and the enthalpy of vaporization for iodine is 41.57 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
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102
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Identify the type of inorganic solid present in MgCl2, SiC, and Cu. Justify your answer by explaining the bonding present in each compound.
asked
Jan 30
in
Inorganic Chemistry
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votes
1
answer
11
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Assuming complete combustion, what is the amount of heat energy released when 25 grams of methane (CH4) is burned completely in oxygen gas (O2)? The enthalpy of combustion for methane is -890.4 kJ/mol.
asked
Jan 22
in
ThermoChemistry
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votes
1
answer
63
views
Why is unconditional positive regard important in therapy?
asked
Jan 20
in
Psychology
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votes
1
answer
32
views
What is the zone of proximal development?
asked
Jan 20
in
Psychology
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1
answer
43
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How did George Miller's research contribute to our understanding of short-term memory?
asked
Jan 20
in
Psychology
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votes
1
answer
12
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According to the validity theory, what is construct validity?
asked
Jan 17
in
Psychology
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1
answer
38
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What is the role of counter-attitudinal advocacy in reducing dissonance?
asked
Jan 16
in
Psychology
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