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Here's a precise problem for the student to solve: What is the effect of molecular weight and temperature on the shear viscosity of a polymer melt, and how does this relationship change for different types of polymer structures (e.g. linear, branched, or cross-linked)?

asked 2 days ago in Polymer Chemistry by LarueDaddari (430 points)

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How can chemistry students be given increased access to current research in the field, and what strategies can educators implement to better integrate this research into classroom instruction and student learning experiences?

asked 2 days ago in Chemical education by Ernestine878 (530 points)

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How can a distillation column be designed to effectively separate a binary mixture of ethanol and water with a specific composition, using commonly available materials and maximizing efficiency while minimizing heat loss?

asked 2 days ago in Chemical engineering by AntwanDelpra (370 points)

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Design a synthesis pathway for the production of 2-butyne from 1-bromobutane, including all necessary reagents and reaction mechanisms.

asked 2 days ago in Organic Chemistry by JerilynGeake (310 points)

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How can chemical modifications of nonsteroidal anti-inflammatory drugs (NSAIDs) improve their efficacy and reduce their adverse effects in the treatment of inflammatory diseases?

asked 2 days ago in Medicinal Chemistry by Rodrick46Q1 (350 points)

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How can chemistry educators adapt their teaching methods to encourage meaningful learning and engagement for students in situations where hands-on experimentation is limited?

asked 2 days ago in Chemical education by ArronMacnama (250 points)

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For the electrochemical reaction + ↔ + , the cell potential is 0.60 V at 25°C. If the standard reduction potential of 2+ is 0.34 V and that of 2+ is -0.74 V, calculate the equilibrium constant () for the reaction at 25°C.

asked 2 days ago in ElectroChemistry by VivienScheff (510 points)

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1 answer 27 views

How can a chemistry student better prepare for a chemistry-related career in industry, and what skills and knowledge should they focus on developing in order to be successful in this field?

asked 2 days ago in Chemical education by ConstanceHor (450 points)

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How can chemistry students overcome the challenge of limited availability of chemistry-related internships and job opportunities?

asked 2 days ago in Chemical education by WillianHowto (510 points)

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Determine the standard enthalpy change for the precipitation reaction of 10.0 g of calcium chloride (CaCl2) with excess sodium carbonate (Na2CO3) to form calcium carbonate (CaCO3) and sodium chloride (NaCl). Given the following standard enthalpies of formation: ΔHf°(CaCl2) = -795.8 kJ/mol, ΔHf°(Na2CO3) = -1130.1 kJ/mol, ΔHf°(CaCO3) = -1206.9 kJ/mol, and ΔHf°(NaCl) = -411.2 kJ/mol.

asked 2 days ago in Chemical thermodynamics by CharliKeesle (390 points)

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How can a chemist develop a process for the efficient production of 1,4-dioxane, a key intermediate in the production of polymers and solvents, using the principles of chemical engineering? Consider factors such as reaction conditions, catalyst selection, and process optimization to maximize yield and minimize waste.

asked 2 days ago in Chemical engineering by Shirley80008 (530 points)

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How can chemistry education programs prioritize the inclusion and awareness of safety protocols in laboratory settings to ensure the well-being of students and prevent accidents and incidents in the future?

asked 2 days ago in Chemical education by Eartha959739 (410 points)

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Design a process for the purification of crude caffeine extracted from coffee beans, using available techniques and equipment at your disposal, while ensuring high purity and minimum loss of product.

asked 2 days ago in Chemical engineering by ZandraClemmo (830 points)

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Determine the polarity of the H-Cl bond in hydrogen chloride molecule, given the electronegativity values of hydrogen and chlorine to be 2.2 and 3.0, respectively.

asked 2 days ago in Chemical bonding by TCMKayla0289 (350 points)

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Here is a precise problem for the student to solve:How does the molecular weight of a polymer affect its physical properties such as viscosity and elasticity? Provide experimental evidence to support your answer.

asked 2 days ago in Physical Chemistry by KellyeBucher (270 points)

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1 answer 32 views

Design a process for the production of urea-based fertilizer starting from ammonia and carbon dioxide gas feedstocks. Determine the optimal operating conditions, including temperature, pressure, and reactor design specifications, to achieve maximum conversion and yield of the desired product. Also, identify and address any potential environmental impacts that may result from the production process.

asked 2 days ago in Chemical engineering by SolCamarillo (470 points)

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How can chemistry education be improved to better train chemistry teachers and ensure that they have the necessary qualifications to effectively teach students?

asked 2 days ago in Chemical education by SimaBodenwie (370 points)

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How can chemistry instructors better support students with learning disabilities in the classroom to enhance their learning experience and academic performance in the subject?

asked 2 days ago in Chemical education by ArlenAbt9111 (390 points)

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Here's a question for the chemistry student to solve related to inadequate preparation for chemistry-related careers:How can universities better prepare chemistry students for careers in industry, beyond traditional academia-focused coursework, to ensure they have the necessary technical and transferable skills for success in their field?

asked 2 days ago in Chemical education by LorenzaNcw80 (350 points)

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1 answer 26 views

How can benzyl chloride and ammonia be reacted together to synthesize phenylalanine in high yields and purity, and what are the key reaction parameters and conditions that must be carefully controlled to achieve this?

asked 2 days ago in Chemical synthesis by TyreeHayward (610 points)

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