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What parameters affect catalytic activity and selectivity in the hydrogenation of ethylene to ethane using a platinum-based catalyst?

asked Jan 31 in Physical Chemistry by VickyMilner (590 points)

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How do the photochemical properties of bioluminescent organisms (such as fireflies and jellyfish) enable them to produce light, and what are the underlying chemical reactions involved in this process?

asked Jan 31 in PhotoChemistry by HuldaLucero (510 points)

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What is the effect of catalysts on the rate of a chemical reaction in terms of activation energy? And, using the Arrhenius equation, calculate the activation energy for the catalyzed and non-catalyzed reactions and compare the two values.

asked Jan 31 in Physical Chemistry by GavinBabin17 (530 points)

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What is the dipole moment of carbon dioxide (CO2) molecule? How does its polar nature affect its physical properties?

asked Jan 31 in Chemical bonding by PenniPraed79 (460 points)

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What is the difference in reactivity between carboxylic acids and acid chlorides towards nucleophilic substitution reactions, and what factors affect their reactivity?

asked Jan 31 in Organic Chemistry by LeonardVande (430 points)

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What is the effect of temperature on the order parameters of a liquid crystal using Monte Carlo simulations?

asked Jan 31 in Computational Chemistry by IsabelleMull (510 points)

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What is the dipole moment of carbon dioxide (CO2) molecule and its direction, given its molecular structure?

asked Jan 31 in Chemical bonding by Lucas40K2221 (530 points)

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What is the difference between an amino acid and a nucleotide, and how do their structures contribute to their respective functions in the body?

asked Jan 31 in Organic Chemistry by JanineGeach (650 points)

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What is the structure of a given unknown organic compound using IR spectroscopy?

asked Jan 31 in Organic Chemistry by KelleeGilrut (350 points)

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What is the percentage of nitrogen, carbon, and hydrogen in a sample of caffeine obtained from coffee beans? Use elemental analysis to determine the composition of the sample.

asked Jan 31 in Analytical Chemistry by EdmundoFlora (590 points)

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How does the photochemical mechanism of bioluminescent organisms work and what are the chemical reactions involved in the production of light?

asked Jan 31 in PhotoChemistry by RodgerFitzGi (370 points)

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What is the molecular structure of caffeine and how can its structure be determined using spectroscopy and vibrational analysis?

asked Jan 31 in Physical Chemistry by RBSJonna0719 (330 points)

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How does alternative RNA splicing affect the structure and function of proteins synthesized from a single gene, using specific examples from biochemical processes in living organisms?

asked Jan 31 in BioChemistry by ChesterNvu69 (710 points)

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What are the specific chemical reactions that occur in the bioluminescence of marine organisms, and how do the chemical structures of the light-emitting molecules contribute to their photochemical properties?

asked Jan 31 in PhotoChemistry by NormandDubay (270 points)

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How can the chemical engineering principles be applied to design an efficient and cost-effective system for the treatment of industrial wastewater that removes heavy metals and organic pollutants while maintaining acceptable pH and biological oxygen demand (BOD) levels?

asked Jan 31 in Chemical engineering by Bessie598680 (590 points)

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How does the accumulation of ceramides contribute to insulin resistance and Type 2 Diabetes Mellitus in lipid metabolism?

asked Jan 31 in BioChemistry by WNWConstance (470 points)

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What is the energy difference between the ground state and the first excited state of a molecule of benzene, calculated using time-dependent density functional theory (TD-DFT)?

asked Jan 31 in Computational Chemistry by EmanuelBrier (450 points)

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How do carbohydrate-protein interactions and recognition affect the binding affinity and specificity of glycoproteins?

asked Jan 31 in BioChemistry by TerrenceMurn (930 points)

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How does the process of carbon fixation in photosynthesis contribute to the production of glucose? Describe the specific chemical reactions involved in converting carbon dioxide into glucose through the Calvin Cycle.

asked Jan 31 in BioChemistry by DanialGriggs (290 points)

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How does the drug aspirin prevent blood clots and what specific chemical reactions occur in the body that cause this prevention?

asked Jan 31 in Medicinal Chemistry by ShaunaB50372 (450 points)

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