Recent activity by MarkusPaquet

1 answer 41 views

What is the relationship between the electronic and magnetic properties of transition metal complexes, and how can they be accurately predicted using quantum chemistry methods?

asked Feb 24 in Quantum Chemistry

1 answer 33 views

What is the effect of ligand structure on the photochemical properties of lanthanide complexes? Compare and contrast the photochemical behaviors of two different lanthanide complexes with different ligands.

answered Feb 22 in PhotoChemistry

1 answer 39 views

What is the mechanism of nucleophilic addition reaction of methanol with propanal, and what is the product obtained?

asked Feb 21 in Organic Chemistry

1 answer 27 views

What is the most effective solvent and reaction conditions to use for the synthesis of polyvinyl alcohol from vinyl acetate monomer?

answered Feb 21 in Chemical synthesis

1 answer 31 views

What is the electronegativity difference between chlorine (Cl) and oxygen (O)? Determine if the bond formed between these two atoms is covalent or ionic.

answered Feb 20 in Chemical bonding

1 answer 31 views

How does the coordination number of a transition metal affect the properties of the resulting complex?

answered Feb 19 in Coordination Chemistry

1 answer 22 views

What is the balanced chemical equation for the thermal decomposition of calcium carbonate (CaCO3) to produce calcium oxide (CaO) and carbon dioxide (CO2) gas?

answered Feb 17 in Chemical reactions

1 answer 34 views

How can we predict the rate and mechanism of a chemical reaction using quantum chemistry calculations?

answered Feb 14 in Quantum Chemistry

1 answer 38 views

How can you optimize the process parameters, such as temperature, pressure, and reactant concentration, for the production of a specific pharmaceutical drug to increase the yield and purity of the product while minimizing production costs?

asked Feb 14 in Chemical engineering

1 answer 35 views

How do coordination complexes of metal ions contribute to the activity of metalloenzymes and metalloproteins, and what are the specific functions of these complexes in their respective biochemical reactions?

answered Feb 12 in Coordination Chemistry

1 answer 54 views

How can the properties of polyurethane be optimized by varying the diisocyanate and polyol components in the synthesis process?

answered Feb 10 in Chemical synthesis

1 answer 44 views

How can the chemical engineering principles be applied to design a system for the production of flavors in order to meet the demand for customized and natural flavors while maintaining high production efficiency and cost-effectiveness?

asked Feb 6 in Chemical engineering

1 answer 68 views

Design a counter-current heat exchanger to cool 10,000 liters per hour of cyclohexane at 110°C down to 50°C, while heating 7,500 liters per hour of water at 25°C up to 80°C. The cyclohexane will be cooled by water which enters the heat exchanger at 90°C and exits at 60°C. The overall heat transfer coefficient is expected to be 1,000 W/m2K. Determine the required heat transfer area and the pressure drop across the heat exchanger.

answered Feb 3 in Chemical engineering

1 answer 64 views

Consider a reaction where Ag is oxidized to Ag+ ions in a solution containing AgNO3. We set up an electrochemical cell with a Ag/Ag+ electrode as the anode and a platinum electrode as the cathode. The standard electrode potential for the Ag/Ag+ electrode is +0.80 V. What is the overpotential required to achieve a current of 2 A if the applied voltage is 1.00 V?

asked Feb 3 in ElectroChemistry

1 answer 90 views

How does changing the concentration of a reactant affect the rate of a chemical reaction, and can this relationship be quantified using experimental data?

asked Jan 31 in Chemical kinetics

1 answer 112 views

What is the isomeric relationship between butane and 2-methylpropane? Draw the structures for each of the isomers and explain the difference in their physical properties.

asked Jan 31 in Organic Chemistry

1 answer 115 views

How does the concentration and pH level of acid rain affect the growth and survival of aquatic plants?

asked Jan 30 in Environmental Chemistry

1 answer 68 views

Calculate the enthalpy change (ΔH) for the following reaction: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)using the following bond enthalpies (in kJ/mol):NH3(g): N-H = 391, N ≡ N = 941O2(g): O=O = 498NO(g): N=O = 628H2O(g): O-H = 463

asked Jan 23 in Inorganic Chemistry

1 answer 36 views

Why is the Bobo doll experiment significant in psychology?

asked Jan 20 in Psychology

1 answer 43 views

When was the Allais Paradox introduced?

asked Jan 20 in Psychology

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