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What is the impact of doping concentration on the electrical conductivity of semiconductors used in electronic devices?

asked Feb 12 in Materials Chemistry by JadaMeece33 (2.7k points)

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Using retrosynthetic analysis, outline a viable multi-step synthesis of ibuprofen from commercially available starting materials. Include appropriate reagents and conditions.

asked Feb 13 in Organic Chemistry by GeraldoPatte (2.4k points)

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What is the heat of hydration of magnesium sulfate, MgSO4, when 45 grams of the anhydrous salt is dissolved in 250 mL of water? The molar heat of hydration of MgSO4 is -138.5 kJ/mol.

asked Feb 13 in ThermoChemistry by Latonya89F54 (2.3k points)

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How do different types and concentrations of pollutants in water affect the growth rate and survival of aquatic organisms such as fish and plants, and what can be done to mitigate these effects?

asked Feb 12 in Environmental Chemistry by KrystleDHage (2.1k points)

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How many ATP molecules are produced during glycolysis and what is the net gain of ATP molecules in glycolysis?

asked Feb 13 in BioChemistry by EdytheEwk100 (2.5k points)

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What is the synthetic route for the production of ibuprofen starting from benzene? Draw the retrosynthesis to show the steps required to obtain the final molecule.

asked Feb 13 in Organic Chemistry by LucilleWhite (1.9k points)

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How can we develop an efficient purification process for the separation of a target chemical from a mixture of impurities?

asked Feb 12 in Chemical engineering by CassieClopto (2.2k points)

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What are the products of the double replacement reaction between sodium chloride and silver nitrate?

asked Feb 13 in Chemical reactions by AdaFennescey (2.6k points)

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What factors affect the rate of ligand substitution reactions in coordination chemistry? How do these factors influence the reaction mechanism and the overall outcome of the reaction? Provide a detailed explanation with specific examples.

asked Feb 13 in Coordination Chemistry by KassieStarns (2.1k points)

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What are the unique electronic properties of graphene that make it a potential candidate for electronic devices and how do these properties compare to those of traditional semiconductors like silicon?

asked Feb 13 in Materials Chemistry by AguedaD83620 (2.5k points)

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How can the synthesis of zeolites be improved to produce materials with greater efficiency and selectivity for specific applications?

asked Feb 13 in Materials Chemistry by IeshaC20996 (2.5k points)

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How can we improve the synthesis of metal-organic frameworks by incorporating environmentally friendly methods and reducing the use of toxic solvents?

asked Feb 13 in Materials Chemistry by RosieBloom03 (2.2k points)

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How does eutrophication affect the concentration of dissolved oxygen in aquatic ecosystems and what are the consequences of low oxygen levels on the survival of aquatic organisms?

asked Feb 13 in Environmental Chemistry by MarianneBarc (2.1k points)

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What are the critical steps and parameters to consider when developing a process for the production of a pharmaceutical drug using chemical engineering principles? How can we ensure the final product is safe, effective, and cost-efficient?

asked Feb 12 in Chemical engineering by AveryJoris20 (2.4k points)

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What are the electronic and optical properties of graphene and other 2D materials when doped with nitrogen or boron atoms, and how do these properties differ from their undoped counterparts?

asked Feb 13 in Quantum Chemistry by AddieFrayne (2.0k points)

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What can be done to improve the availability of chemistry textbooks and resources for students in underprivileged and rural areas who may not have access to adequate educational materials?

asked Feb 13 in Chemical education by Camilla86G58 (2.3k points)

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How can we improve the sensitivity of gas sensors by synthesizing and characterizing new materials with high surface area and optimal molecular recognition properties?

asked Feb 13 in Materials Chemistry by DoloresOtero (1.9k points)

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What hybrid orbitals are present in the molecule CH4, and what is the bond angle between each of the hydrogen atoms?

asked Feb 13 in Chemical bonding by PalmaYuille (2.2k points)

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What is the hybridization of the central atom in the inorganic compound PCl5?

asked Feb 13 in Inorganic Chemistry by AllenBloomfi (1.9k points)

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What type of bond exists between a carbon atom (C) and an oxygen atom (O) in a carbon dioxide (CO2) molecule?

asked Feb 13 in Chemical bonding by TeshaPennell (2.3k points)

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