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User VetaPetterd1
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What is the most efficient method for synthesizing 2,4-dinitrophenol from phenol and nitric acid with a high yield?
answered
Feb 21
in
Chemical synthesis
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votes
83
views
What is the impact of pH on the rate of photochemical reactions involving hydrogen peroxide and halogenated acetates, and what mechanisms are responsible for the observed rate changes in different pH conditions?
answered
Feb 20
in
PhotoChemistry
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81
views
What factors affect the rate of inorganic reactions, and how can we experimentally determine those variables?
answered
Feb 14
in
Inorganic Chemistry
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75
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How can we use quantum chemistry calculations to predict the catalytic activity and selectivity of a given chemical reaction?
answered
Feb 14
in
Quantum Chemistry
0
votes
83
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How do nitrogen and phosphorus pollutants affect the quality of water in a particular aquatic ecosystem, and what chemical processes can be utilized to mitigate their impact?
answered
Feb 13
in
Environmental Chemistry
0
votes
129
views
How can the synthesis of high molecular weight polystyrene with a specific degree of polymerization be optimized using varying reaction parameters (e.g. temperature, initiator concentration, monomer feed rate)?
answered
Feb 11
in
Chemical synthesis
0
votes
92
views
How can the mechanical properties of polyurethane synthesized from diisocyanate and polyol be optimized by varying the reaction conditions such as temperature, reaction time or catalyst type?
answered
Feb 10
in
Chemical synthesis
0
votes
96
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How can the irreversible process of mixing two gases at different temperatures be described using non-equilibrium thermodynamics? Provide a quantitative analysis of the process assuming ideal gas behavior, and explain the consequences of irreversible mixing.
answered
Feb 7
in
Physical Chemistry
0
votes
77
views
How can medicinal chemists design drugs to specifically target the lifecycle of the Zika virus while minimizing the risk of harming healthy cells?
answered
Feb 5
in
Medicinal Chemistry
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votes
120
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For a given organic molecule with a Lewis structure, what is the frequency of infrared radiation that would induce the greatest change in the dipole moment of the molecule?
answered
Feb 4
in
Quantum Chemistry
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112
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Calculate the surface tension of a liquid whose weight is 0.1 N and the length of a wire that floats on the surface of the liquid is 20 cm. The density of the liquid is 1.2 g/cm³.
answered
Feb 3
in
Surface Chemistry
0
votes
67
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How can polarography be used to accurately determine the concentration of a metal ion in a given sample and what are the factors that may affect the accuracy of the analysis?
answered
Jan 29
in
Analytical Chemistry
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121
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A sample of an unknown inorganic compound contains 44.44% magnesium, 22.22% sulfur, and 33.33% oxygen by mass. Determine the empirical formula of the compound. If the molar mass of the compound is 120 g/mol, what is its molecular formula?
answered
Jan 22
in
Inorganic Chemistry
0
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86
views
Compare and contrast the biomedical and biopsychosocial models of mental illness.
answered
Jan 20
in
Psychology
0
votes
111
views
What is the cognitive psychology approach's evaluation of perceptual illusions?
answered
Jan 20
in
Psychology
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55
views
What is the role of emotion in counselling?
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Jan 17
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Psychology
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votes
52
views
What is the concept of demand characteristics in research?
answered
Jan 15
in
Psychology
0
votes
95
views
What are criticisms of Bayesian modelling?
answered
Jan 15
in
Psychology
0
votes
63
views
What is the animal mind-body problem?
answered
Jan 14
in
Psychology
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119
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What is the difference between problem-solving coping and seeking social support?
answered
Jan 14
in
Psychology
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