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1
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How do the photochemical properties of metal complexes vary with changes in the coordination geometry of the metal center?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
29
views
What is the molecular geometry and bond angles of the molecule CH4 (methane) using quantum chemistry calculations?
asked
Feb 21
in
Quantum Chemistry
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1
answer
30
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How does the body synthesize non-essential amino acids and what are the key enzymes and pathways involved in their biosynthesis?
asked
Feb 20
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BioChemistry
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1
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102
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What is the role of excited state intermediates in the mechanism of photochemical reactions in organic compounds, and how do they affect the selectivity and efficiency of the reaction?
asked
Feb 13
in
PhotoChemistry
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1
answer
42
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How can the mechanical properties of a polymer be improved during processing and manufacturing?
asked
Feb 10
in
Polymer Chemistry
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1
answer
123
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Determine the formal charge of the central atom in SF6. Show all your work and explain how you arrived at your answer.
asked
Feb 4
in
Inorganic Chemistry
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1
answer
76
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Design a distillation column to separate a mixture that contains 40% ethanol and 60% water by weight with a desired ethanol purity of 95%. The feed rate of the mixture is 100 kg/hr and the reflux ratio is 3:1. Determine the number of theoretical plates required and the height of the column. Assume that the total condenser and reboiler are both at 100°C and that the distillate leaving the column is 90% liquid and 10% vapor.
asked
Feb 4
in
Chemical engineering
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1
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85
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What is the calculated vibrational frequency of the carbon-oxygen double bond in the molecule ethylene oxide, and how does this frequency compare to the corresponding frequency for a single carbon-oxygen bond? Use quantum chemical calculations to determine the infrared spectra for both bonds, and explain the differences in the spectra.
asked
Jan 31
in
Quantum Chemistry
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1
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138
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What steps can be taken in the chemistry field to encourage and support underrepresented groups, such as women and minorities, to pursue careers in chemistry and increase diversity in the field?
asked
Jan 30
in
Chemical education
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1
answer
45
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How can the presence of specific elements in a sample be identified using X-ray fluorescence spectroscopy and how can the results be used to determine the composition and purity of the sample?
asked
Jan 29
in
Analytical Chemistry
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1
answer
67
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Calculate the heat capacity of 50g of water when its temperature is raised from 25°C to 65°C.
asked
Jan 23
in
Chemical thermodynamics
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1
answer
77
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Assuming a constant temperature and pressure, what is the solubility of calcium sulfate (CaSO4) in water, given that the concentration of Ca2+ ion in a saturated solution is 4.7 x 10^-5 mol/L? Provide your answer in grams per liter.
asked
Jan 21
in
Inorganic Chemistry
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1
answer
43
views
According to the mere exposure effect, what is the effect of repeated exposure to a stimulus?
asked
Jan 20
in
Psychology
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1
answer
61
views
According to ecological systems theory, why does development not occur in a linear fashion?
asked
Jan 17
in
Psychology
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1
answer
35
views
How can the concept of 'etic' and 'emic' perspectives be useful in cross-cultural psychology research?
asked
Jan 16
in
Psychology
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1
answer
60
views
According to the theory of self-determination, what are the three basic needs that must be met to maintain psychological wellbeing?
asked
Jan 16
in
Psychology
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votes
1
answer
89
views
According to the tetrachoric correlation coefficient, what type of data should both variables be?
asked
Jan 15
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Psychology
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1
answer
71
views
Where does the concept of hegemonic femininity come from?
asked
Jan 15
in
Psychology
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1
answer
101
views
How is social action theory used in community psychology?
asked
Jan 15
in
Psychology
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1
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56
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What is the difference between cognitive and behavioural approaches to treatment?
asked
Jan 15
in
Psychology
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