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Sure, here's a possible precise question: How does the type of chemical bonding affect the properties of a substance, and how can we predict the molecular structure of a chemical based on its bonding type and electron configuration?

asked Feb 28 in Chemical education by TheScientist (138k points)

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What is the effect of temperature on the viscosity of ionic liquids?

asked Feb 28 in Physical Chemistry by TheScientist (138k points)

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How does the toxicity of existing drugs vary with changes in their chemical structures, and what specific functional groups or elements contribute to their toxicity?

asked Feb 28 in Medicinal Chemistry by TheScientist (138k points)

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What is the amount of heat (in joules) required to raise the temperature of 125 grams of water from 25°C to its boiling point of 100°C? The specific heat capacity of water is 4.184 J/(g·°C) and the enthalpy of vaporization of water is 40.7 kJ/mol.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the unit cell of sodium chloride crystal?

asked Feb 28 in Physical Chemistry by TheScientist (138k points)

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How does the type of chemical bond formed between atoms determine the strength of the resulting molecule?

asked Feb 28 in Chemical bonding by TheScientist (138k points)

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What is the yield of phenylalanine obtained from the reaction between benzyl chloride and ammonia under specific reaction conditions, and how can it be optimized?

asked Feb 28 in Chemical synthesis by TheScientist (138k points)

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What is the enthalpy of polymerization of polystyrene if 10 grams of styrene monomer undergo complete polymerization in a constant pressure calorimeter and releases 1195 kJ of energy as heat?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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How can the use of nanotechnology improve the drug delivery system of a chemotherapeutic agent to selectively target cancer cells while reducing the toxicity to healthy cells?

asked Feb 28 in Medicinal Chemistry by TheScientist (138k points)

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What is the effect of molecular weight and concentration of a polymer on its viscosity and shear rate in melt processing?

asked Feb 28 in Polymer Chemistry by TheScientist (138k points)

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How can we mitigate the harmful effects of acid rain on aquatic ecosystems?

asked Mar 1 in Environmental Chemistry by TheScientist (138k points)

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What are the common types of chemical reactions and how can we balance chemical equations to represent these reactions accurately?

asked Mar 1 in Chemical education by TheScientist (138k points)

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What is the enthalpy change when 25.0 g of potassium chloride is dissolved in 250 mL of water at 25°C? Given that the density of water is 0.997 g/mL and the enthalpy of solution of potassium chloride is -56.7 kJ/mol.

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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How can the Williamson ether synthesis be used to synthesize a symmetrical ether from two different alkyl halides? Provide a stepwise mechanism for the reaction.

asked Feb 28 in Organic Chemistry by TheScientist (138k points)

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How can theoretical methods of quantum chemistry be used to predict the electronic and magnetic properties of molecular magnets, and what factors influence their magnetic behavior?

asked Mar 1 in Quantum Chemistry by TheScientist (138k points)

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How has the understanding of chemical bonding evolved over time and what impact has this had on our understanding of chemical reactions?

asked Feb 28 in Chemical education by TheScientist (138k points)

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What factors affect the adhesion of coatings to surfaces, and how can these factors be controlled to optimize the performance of the coating?

asked Mar 1 in Surface Chemistry by TheScientist (138k points)

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What is the activation energy for the reaction between 2 M of HCl and 2 M of NaOH at a temperature of 25°C when a voltage of 1.5 V is applied?

asked Mar 1 in ElectroChemistry by TheScientist (138k points)

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What is the reaction quotient for the following chemical reaction at 25°C, with concentrations of products and reactants as follows:2NOBr(g) ⇌ 2NO(g) + Br2(g)[NO]^2[Br2] / [NOBr]^2

asked Mar 1 in Chemical thermodynamics by TheScientist (138k points)

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How does the topology of a material affect its electronic and magnetic properties, and what methods can be used or developed to predict and analyze these properties in topological materials using quantum chemistry calculations?

asked Feb 28 in Quantum Chemistry by TheScientist (138k points)

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