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1
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33
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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
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
1
answer
30
views
How does the body synthesize non-essential amino acids and what are the key enzymes and pathways involved in their biosynthesis?
asked
Feb 20
in
BioChemistry
1
answer
30
views
What temperature, pressure, and chemical conditions are required for the Haber process to produce ammonia at an optimum rate for fertilizer production, given a certain amount of reactants?
answered
Feb 20
in
Chemical engineering
1
answer
28
views
What is the effect of temperature on the adsorption of gases on solid surfaces? Provide a detailed explanation with experimental evidence.
answered
Feb 20
in
Surface Chemistry
1
answer
34
views
What is the bond length between two hydrogen atoms in a hydrogen molecule (H2)? Given the atomic radius of hydrogen as 37 pm and the bond energy of H2 as 436 kJ/mol.
answered
Feb 18
in
Chemical bonding
1
answer
39
views
How does the body regulate the synthesis of non-essential amino acids in the process of amino acid metabolism?
answered
Feb 17
in
BioChemistry
1
answer
102
views
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
1
answer
42
views
How can the mechanical properties of a polymer be improved during processing and manufacturing?
asked
Feb 10
in
Polymer Chemistry
1
answer
40
views
How can the knowledge of the mechanism of photochemical reactions in organic compounds be used to predict the products formed and optimize reaction conditions for improved yield?
answered
Feb 7
in
PhotoChemistry
1
answer
40
views
How can technology be effectively integrated into chemistry education to enhance student learning and engagement?
answered
Feb 6
in
Chemical education
1
answer
123
views
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
1
answer
76
views
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
1
answer
85
views
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
1
answer
138
views
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
1
answer
45
views
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
1
answer
67
views
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
1
answer
100
views
A chemistry student wants to create a chemical reaction that produces exactly 25 grams of water. How many grams of hydrogen and oxygen would need to react to create this amount of water?
answered
Jan 22
in
Chemical reactions
1
answer
77
views
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
1
answer
106
views
What is the product of the electrophilic addition reaction between propene and hydrogen chloride?
answered
Jan 21
in
Organic Chemistry
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