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What is the optimal reaction conditions (temperature, pressure, and catalyst) for the synthesis of polyethylene terephthalate from terephthalic acid and ethylene glycol to achieve the highest yield and purity?
answered
Feb 21
in
Chemical synthesis
0
votes
27
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Identify the type of inorganic compound formed between magnesium and chlorine.
answered
Feb 20
in
Inorganic Chemistry
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30
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Identify the type of inorganic compound formed between magnesium and chlorine. Is it ionic, covalent, or metallic? Justify your answer using appropriate chemical properties.
answered
Feb 20
in
Inorganic Chemistry
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30
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What is the effect of varying pH levels (acidic, neutral, basic) on the rate of photochemical reactions of organic compounds? Specifically, how does pH impact the rate of a photochemical reaction between an aromatic compound and a halogen molecule?
answered
Feb 20
in
PhotoChemistry
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40
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How does the absorption of light by a molecule lead to electronic excitations and what are the subsequent photophysical and photochemical processes that occur in the excited state?
answered
Feb 17
in
Quantum Chemistry
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48
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What is the role of metal complexes in the process of photosynthesis? Discuss the photochemical properties that make certain metal complexes better suited for this process and how they contribute to the conversion of light energy into chemical energy.
answered
Feb 13
in
PhotoChemistry
0
votes
35
views
How can the formulation of drug delivery systems be optimized to improve the efficacy of a specific drug for a particular medical condition while minimizing potential side effects?
answered
Feb 7
in
Medicinal Chemistry
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votes
36
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Considering a molecule with a known ground state configuration, how can one determine the electronic excited states and their corresponding optical properties using computational methods in quantum chemistry?
answered
Feb 3
in
Quantum Chemistry
0
votes
61
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How can X-ray fluorescence spectroscopy be used to identify the presence of arsenic in a given environmental sample and what are the potential implications of detecting arsenic levels above the acceptable limit?
answered
Jan 30
in
Analytical Chemistry
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votes
63
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How can electrophoresis be used to determine the composition of a protein sample and what factors affect protein migration during electrophoresis?
answered
Jan 29
in
Analytical Chemistry
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65
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Calculate the equilibrium constant, Kc, for the reaction:2SO2(g) + O2(g) ⇌ 2SO3(g) at a temperature of 600 K, given that the initial concentrations of SO2, O2, and SO3 were 0.025 M, 0.014 M, and 0 M, respectively, and at equilibrium [SO2] = 0.015 M, [O2] = 0.008 M, and [SO3] = 0.025 M.
answered
Jan 23
in
Chemical equilibrium
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86
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A student wants to calculate the reaction quotient, Q, for the following chemical reaction at 298 K:2H2(g) + O2(g) ⇌ 2H2O(g)If the partial pressures of H2, O2, and H2O are 0.25 atm, 0.15 atm, and 0.1 atm, respectively, what is the value of Q?
answered
Jan 22
in
Chemical thermodynamics
0
votes
57
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What is the role of the ventral tegmental area in addiction?
answered
Jan 20
in
Psychology
0
votes
90
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Why is the self-determination theory important to psychology?
answered
Jan 20
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Psychology
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votes
50
views
According to Kohlberg, what is the highest level of moral development?
answered
Jan 20
in
Psychology
0
votes
38
views
Where does the concept of 'existential freedom' come from?
answered
Jan 20
in
Psychology
0
votes
87
views
Where does the social-cognitive model place emphasis?
answered
Jan 20
in
Psychology
0
votes
68
views
What is the relevance of humanistic psychology for leadership and motivation?
answered
Jan 15
in
Psychology
0
votes
18
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What is important to consider when providing end-of-life care to people from different cultures?
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Jan 14
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Psychology
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78
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What is internal validity?
answered
Jan 14
in
Psychology
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