Recent activity by JeanetteOffi

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How does the rate of electron transfer in a redox reaction change with varying concentrations of reactants and catalysts, and what factors influence the energy barriers for the transfer process?

answered Feb 22 in Quantum Chemistry

1 answer 22 views

What is the mechanism for the Pinacol-Pinacolone rearrangement and what factors affect its rate?

asked Feb 22 in Organic Chemistry

1 answer 22 views

What is the optimum temperature and reaction time required to synthesize high molecular weight polyacrylonitrile from acrylonitrile monomer using a free radical polymerization method?

answered Feb 22 in Chemical synthesis

1 answer 27 views

What are the resonance structures of the molecule nitrate ion (NO3-)?

answered Feb 21 in Chemical bonding

1 answer 33 views

How does the molecular weight of a polymer affect the mechanical properties of a 3D-printed object made from that polymer?

answered Feb 21 in Polymer Chemistry

1 answer 33 views

What is the relationship between the electronic configuration of an inorganic compound and its reactivity?

answered Feb 20 in Inorganic Chemistry

1 answer 34 views

What is the effect of temperature on the rate of reaction and the profitability of the reaction between hydrochloric acid and magnesium?

answered Feb 20 in Chemical kinetics

1 answer 36 views

How do the spectroscopic techniques like UV-Vis, IR, and NMR help in characterizing coordination compounds and determining their electronic and geometric structure?

answered Feb 14 in Coordination Chemistry

1 answer 44 views

How do quantum dots' photochemical properties change with variations in their size, shape, and composition, and how can this knowledge be applied to enhance their applications in areas such as biological imaging and solar cell technology?

asked Feb 14 in PhotoChemistry

1 answer 64 views

How does increasing the size of a gold nanoparticle affect its electronic transport properties as predicted by density functional theory calculations?

asked Feb 13 in Computational Chemistry

1 answer 91 views

What is the number of electrons transferred in the electrochemical reaction between silver (Ag) and copper (Cu) in which silver ions (Ag+) get reduced to silver metal (Ag) while copper metal (Cu) is oxidized to copper ions (Cu2+)?

answered Feb 13 in ElectroChemistry

1 answer 65 views

What type of bond forms between a carbon atom and a chlorine atom in a molecule of carbon tetrachloride (CCl4)?

asked Feb 13 in Chemical bonding

1 answer 53 views

What is the net ATP gained during glycolysis, and how is it generated?

asked Feb 13 in BioChemistry

1 answer 72 views

How can the production process of detergents be optimized to improve their effectiveness in removing stains, while minimizing their environmental impact and reducing production costs?

asked Feb 10 in Chemical engineering

1 answer 43 views

How can the mechanical properties of biodegradable polymers be optimized for use in orthopedic implants?

answered Feb 10 in Materials Chemistry

1 answer 113 views

What are the main differences between addition polymerization and condensation polymerization, and how do these differences affect the properties of the resulting polymers? Provide examples of each type of polymerization and explain how their properties differ.

answered Jan 30 in Organic Chemistry

1 answer 108 views

What is the concentration of copper ions in a sample of wastewater collected from a factory using cyclic voltammetry?

asked Jan 30 in Analytical Chemistry

1 answer 152 views

How can X-ray diffraction be used to identify the crystal structure and composition of a sample?

answered Jan 30 in Analytical Chemistry

1 answer 37 views

Calculate the Gibbs free energy change at 298 K for the reaction of hydrogen gas (H2) and chlorine gas (Cl2) to form hydrogen chloride gas (2HCl), given the following thermodynamic data:∆H°f (HCl) = -92.31 kJ/mol∆H°f (H2) = 0 kJ/mol∆H°f (Cl2) = 0 kJ/mol∆S°f (HCl) = -181.6 J/(mol*K)∆S°f (H2) = 130.7 J/(mol*K)∆S°f (Cl2) = 223.1 J/(mol*K)Also, determine whether the reaction is spontaneous at 298 K and if it will shift towards products or reactants.

asked Jan 23 in Chemical thermodynamics

1 answer 120 views

Calculate the enthalpy change for the reaction: 2H2(g) + O2(g) --> 2H2O(g) given the following enthalpy changes: H2(g) + 1/2O2(g) --> H2O(g) ΔH1 = -286 kJ/molH2(g) + 1/2Cl2(g) --> HCl(g) ΔH2 = -92 kJ/mol Cl2(g) --> 2Cl(g) ΔH3 = +242 kJ/molHCl(g) + 1/2O2(g) --> H2O(g) + Cl2(g) ΔH4 = -184 kJ/mol

answered Jan 23 in Chemical reactions

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