Recent activity by JamisonKwan8

1 answer 39 views

What is the relationship between the electronegativity difference and the type of bonding (ionic, polar covalent, or nonpolar covalent) in chemical compounds? How does this relationship affect the properties of the compounds?

answered Feb 24 in Chemical education

1 answer 30 views

What is the specific mechanism and reaction conditions necessary for the preparation of 2,4-dinitrobenzoic acid from benzoic acid and nitric acid, and what intermediate products are formed during the process?

answered Feb 22 in Chemical synthesis

1 answer 35 views

What factors influence the photochemical properties of nanoparticles and how can these properties be controlled to optimize their performance in various applications?

asked Feb 22 in PhotoChemistry

1 answer 34 views

How does the temperature and pressure affect the phase transition of water from liquid to gas as modeled through Monte Carlo simulations?

answered Feb 22 in Computational Chemistry

1 answer 39 views

What is the molar mass of calcium nitrate, Ca(NO3)2?

answered Feb 21 in Inorganic Chemistry

1 answer 27 views

How do the electronic and optical properties of conjugated polymers vary as the size of the polymer chain increases?

asked Feb 20 in Quantum Chemistry

1 answer 28 views

How do the electronic and magnetic properties of transition metal complexes change when different ligands are coordinated, and how can we use quantum chemical calculations to predict these changes?

asked Feb 20 in Quantum Chemistry

1 answer 36 views

What is the mechanism behind the destructive impact of chlorofluorocarbons (CFCs) on the ozone layer, and how can this mechanism be leveraged to develop alternative compounds that do not harm the ozone layer?

answered Feb 19 in Environmental Chemistry

1 answer 31 views

How does the addition of inhibitors affect the rate of corrosion on a metal surface, and what specific molecular interactions contribute to this effect?

answered Feb 17 in Surface Chemistry

1 answer 28 views

How does the addition of a solvent affect the folding of a particular protein, and what parameters can be modified to optimize the folding process in molecular dynamics simulations?

answered Feb 17 in Computational Chemistry

1 answer 71 views

What is the effect of doping nitrogen onto the electronic and optical properties of graphene and other 2D materials and how can it be accurately calculated using quantum chemistry methods?

answered Feb 12 in Quantum Chemistry

1 answer 15 views

How can the synthesis of metal-organic frameworks be optimized to improve their stability and efficiency as catalysts for chemical reactions?

asked Feb 11 in Materials Chemistry

1 answer 39 views

How can computational chemistry be used to determine the binding affinity between a host molecule and guest molecules in supramolecular chemistry?

asked Feb 5 in Computational Chemistry

1 answer 38 views

Design a chemical reactor for the production of 500 kg/day of ethylene oxide through the oxidation of ethylene with oxygen in the presence of a silver catalyst. The reactor should achieve a conversion of 85% with a selectivity of 95% towards ethylene oxide, while operating at 3 atm and a reactor temperature range of 200-250°C. The feed stream consists of 15% ethylene, 5% oxygen, and the rest is nitrogen. Determine the appropriate reactor type, size, and operating conditions to achieve these specifications.

asked Feb 3 in Chemical engineering

1 answer 61 views

Calculate the standard entropy change for the reaction: 2H2 (g) + O2 (g) -> 2H2O (g) given the standard enthalpy of formation of H2O (g) is -241.8 kJ/mol at 298 K.

answered Feb 3 in Inorganic Chemistry

1 answer 86 views

Calculate the standard enthalpy change for the reaction 2H2(g) + O2(g) ⟶ 2H2O(g), given that the standard enthalpies of formation of H2(g), O2(g), and H2O(g) are 0 kJ/mol, 0 kJ/mol, and -242 kJ/mol, respectively.

asked Feb 3 in Chemical thermodynamics

1 answer 90 views

What teaching methods can be utilized to foster interest and engagement in chemistry among high school students who have previously shown a lack of interest in the subject?

answered Jan 30 in Chemical education

1 answer 101 views

How can practical applications of chemistry be integrated and emphasized more effectively in chemical education to help students better bridge the gap between theory and real-life scenarios?

answered Jan 30 in Chemical education

1 answer 81 views

What is the concentration of iron ions in a water sample collected from a local lake using polarography technique?

answered Jan 30 in Analytical Chemistry

1 answer 133 views

What is the chemical formula of the unknown compound that has a molecular ion peak (M+) at m/z 146, and major fragment peaks at m/z 120 and 105 in the mass spectrum, and has the molecular ion peak four times more intense than the base peak? Use mass spectrometry to identify the unknown compound.

answered Jan 30 in Analytical Chemistry

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