Questions by MoniqueBrins

0 votes

1 answer 30 views

How does the reaction rate affect the safety of chemical reactions? Investigate the relationship between reaction rate and potential hazards in chemical reactions, and propose measures to prevent or minimize the risks associated with fast reactions.

asked Feb 24 in Chemical kinetics

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1 answer 25 views

What is the mechanism of the Hofmann degradation reaction for primary amides, and how does it differ from the mechanism of Gabriele reaction?

asked Feb 20 in Organic Chemistry

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1 answer 33 views

How do the electronic and optical properties of graphene and 2D materials vary with changes in their structural defects and doping level?

asked Feb 20 in Quantum Chemistry

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1 answer 24 views

How does the addition of nanoparticles affect the rheological properties of polymer melts?

asked Feb 17 in Polymer Chemistry

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1 answer 40 views

How does pharmacogenetic testing aid in determining the most effective drug treatment plan for patients with specific genetic variations, and what are the potential benefits and limitations of this approach in personalized medicine?

asked Feb 14 in Medicinal Chemistry

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1 answer 44 views

What is the hybridization of the carbon atoms in ethene (C2H4) and how does it affect the molecule's geometry and bond angles?

asked Feb 13 in Chemical bonding

0 votes

1 answer 78 views

How can we improve the efficacy and diminish side effects of current treatments for cardiovascular diseases using medicinal chemistry approaches?

asked Feb 13 in Medicinal Chemistry

0 votes

1 answer 114 views

How can the properties and behavior of polymer-based drug delivery systems be optimized to ensure efficient drug delivery and release?

asked Feb 10 in Polymer Chemistry

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1 answer 88 views

How can the production process for adhesives be optimized to increase the efficiency and reduce the environmental impact of the manufacturing process in chemical engineering?

asked Feb 10 in Chemical engineering

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1 answer 39 views

How can the optical properties of a specific polymer be tailored to suit a particular application? How can the chemical structure of the polymer be modified to enhance its optical properties?

asked Feb 10 in Polymer Chemistry

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1 answer 34 views

How can the magnetic properties of different materials be analyzed and compared to determine their suitability for use in data storage applications?

asked Feb 7 in Materials Chemistry

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1 answer 72 views

Calculate the value of standard enthalpy change for the sublimation of solid iodine at 25°C. The molar heat capacity of iodine (s) is 54.44 J/mol·K and its molar entropy of sublimation is 62.43 J/mol·K. The standard entropy of formation of iodine (s) is 62.80 J/mol·K.

asked Feb 3 in Chemical thermodynamics

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1 answer 56 views

Calculate the standard enthalpy change for the precipitation reaction: AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)given that the standard enthalpy of formation for AgCl(s) is -127.0 kJ/mol, and for NaNO3(aq) is -467.14 kJ/mol. The molar enthalpy of solution of NaCl and AgNO3 are -3.9 kJ/mol and -19.9 kJ/mol respectively.

asked Feb 3 in Chemical thermodynamics

0 votes

1 answer 47 views

Calculate the standard enthalpy change (ΔH°) and standard entropy change (ΔS°) for the decomposition reaction of calcium carbonate (CaCO3) at 298 K:CaCO3(s) → CaO(s) + CO2(g)

asked Feb 3 in Inorganic Chemistry

0 votes

1 answer 77 views

Calculate the formal charge of oxygen in the molecule SO2.

asked Jan 23 in Chemical bonding

0 votes

1 answer 52 views

Calculate the enthalpy of vaporization of water given that it has a vapor pressure of 1.00 atm at 100°C and its molar enthalpy of vaporization at 373 K is 40.7 kJ/mol.

asked Jan 23 in ThermoChemistry

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1 answer 64 views

Calculate the enthalpy of isomerization for the reaction of cis-2-butene to its trans counterpart. Given the following information: - Heat of combustion of cis-2-butene = -3338.9 kJ/mol- Heat of combustion of trans-2-butene = -3478.6 kJ/mol- Heat of combustion of butane = -2877.2 kJ/mol

asked Jan 23 in ThermoChemistry

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1 answer 79 views

Calculate the density of barium sulfate ($\text{BaSO}_{4}$) with a molecular weight of 233.39 g/mol, assuming a sample with a mass of 5 g occupies a volume of 3 mL.

asked Jan 23 in Inorganic Chemistry

0 votes

1 answer 20 views

Calculate the cell potential at standard conditions for the electrochemical reaction: Cu(s) + 2Ag+(aq) -> 2Ag(s) + Cu2+(aq) given that the standard reduction potentials for Cu2+(aq)/Cu(s) and Ag+(aq)/Ag(s) are +0.34 V and +0.80 V, respectively.

asked Jan 23 in ElectroChemistry

0 votes

1 answer 48 views

When did the concept of compartmentalising begin to emerge?

asked Jan 20 in Psychology

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