Recent activity by ChloeBodnar

1 answer 60 views

How does the rate of a photochemical reaction change as the intensity of light is increased?

asked Feb 22 in PhotoChemistry

1 answer 32 views

How does the presence of different functional groups on cations and anions affect the viscosity of ionic liquids at different temperatures?

answered Feb 22 in Physical Chemistry

1 answer 30 views

What is the most efficient method for synthesizing polystyrene from styrene monomer at a large scale while minimizing waste and maximizing yield?

answered Feb 21 in Chemical synthesis

1 answer 31 views

What is the molecular geometry and bond angles of the molecule CH4 (methane) using quantum chemistry calculations?

answered Feb 21 in Quantum Chemistry

1 answer 34 views

What is the balanced chemical equation for the complete combustion of propane (C3H8) and how many moles of oxygen gas are required for the reaction to produce 5 moles of carbon dioxide and 4 moles of water?

asked Feb 17 in Chemical reactions

1 answer 35 views

How does quantum coherence and entanglement impact the stability and reactivity of molecular and nanoscale systems?

asked Feb 14 in Quantum Chemistry

1 answer 31 views

How can we predict the crystal structure of inorganic solids using various theoretical and experimental techniques, and what factors affect the formation and stability of different crystal structures in these solids?

asked Feb 14 in Inorganic Chemistry

1 answer 44 views

How can we optimize the process parameters (such as temperature, pressure, and reaction time) for the production of environmentally-friendly detergents with high cleaning performance?

answered Feb 14 in Chemical engineering

1 answer 61 views

How does increasing temperature affect the rate of the photochemical reaction of a particular substance? Determine the activation energy and the Arrhenius constant of the reaction to predict the effect of changing temperature on the reaction rate.

asked Feb 13 in PhotoChemistry

1 answer 57 views

How does increasing pressure affect the rate of a chemical reaction, specifically the reaction between hydrogen gas and iodine gas to form hydrogen iodide?

answered Feb 13 in Chemical kinetics

1 answer 75 views

How can the synthesis and characterization of new materials be optimized for use in gas sensors to detect volatile organic compounds (VOCs) in industrial and household environments?

answered Feb 11 in Materials Chemistry

1 answer 38 views

How can the optical properties of glasses be optimized for specific applications, such as lenses for eyeglasses or camera lenses, and what parameters need to be considered in the design process?

answered Feb 10 in Materials Chemistry

1 answer 40 views

How can the mechanical properties of 3D printed polymer materials be improved for industrial applications?

answered Feb 10 in Polymer Chemistry

1 answer 47 views

How can the industrial wastewater treatment system be designed using chemical engineering principles such as coagulation, flocculation, sedimentation, and disinfection to effectively remove contaminants such as heavy metals, organic compounds, and toxicity from the wastewater before discharge into the environment?

asked Feb 7 in Chemical engineering

1 answer 31 views

How can chemistry students who have limited access to extracurricular activities related to chemistry supplement their education to enhance their understanding of the subject?

answered Feb 5 in Chemical education

1 answer 81 views

Find the standard enthalpy change for the reaction: 2C2H5OH(l) + 9O2(g) --> 6CO2(g) + 8H2O(l) given the following information: Standard enthalpy of formation (ΔHfº) of C2H5OH(l) = -277 kJ/mol Standard enthalpy of formation (ΔHfº) of CO2(g) = -393.5 kJ/mol Standard enthalpy of formation (ΔHfº) of H2O(l) = -285.8 kJ/mol Assume that the reaction occurs at standard conditions.

answered Feb 4 in Chemical thermodynamics

1 answer 83 views

Determine the enthalpy change of precipitation for the reaction between 50ml of 0.1M sodium sulfate and 50ml of 0.1M barium nitrate, given that the final temperature is 25°C and the initial temperature was 30°C. The specific heat capacity of the solution is 4.18 J/g °C and the density is 1 g/mL. (Assume the reaction goes to completion and all volumes are additive.)

answered Feb 4 in ThermoChemistry

1 answer 62 views

Calculate the standard enthalpy change for the reaction between [Co(en)2Cl2]Cl and NaNO2 to form [Co(en)2(NO2)2]Cl and NaCl, given the following information: [Co(en)2Cl2]Cl and [Co(en)2(NO2)2]Cl have a ΔHf° of -288 kJ/mol and -136 kJ/mol, respectively. The ΔHf° of NaNO2 and NaCl are -463.2 kJ/mol and -411.2 kJ/mol, respectively. Assume that the reaction is conducted at a constant pressure and temperature of 298 K.

answered Feb 3 in Chemical thermodynamics

1 answer 76 views

Calculate the partition function for a system of 10 molecules of a monoatomic gas confined to a 1-dimensional box of length 1 nm at a temperature of 300 K using the classical and quantum mechanical methods. Then, compare the results obtained and explain the discrepancies observed.

asked Feb 3 in Physical Chemistry

1 answer 104 views

What is the electronic configuration and molecular orbital diagram for the carbon monoxide (CO) molecule?

answered Jan 31 in Quantum Chemistry

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