Recent activity by FrancisGepp5

1 answer 77 views

What is the step-by-step procedure for preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas, including the appropriate reaction conditions, safety measures, and expected yield of the product?

answered Feb 22 in Chemical synthesis

1 answer 82 views

What is the predicted molecular geometry of a molecule of XeF4, and what is the hybridization of the central atom?

answered Feb 22 in Chemical bonding

1 answer 67 views

What is the most efficient and effective method for synthesizing ZSM-5 zeolites with high catalytic activity for the conversion of methanol to olefins?

asked Feb 21 in Materials Chemistry

1 answer 84 views

How does the coordination environment around the metal ion in a metalloenzyme affect its catalytic activity towards a specific substrate? Provide a detailed analysis of the coordination chemistry of at least one metalloenzyme and its role in catalysis.

asked Feb 19 in Coordination Chemistry

1 answer 78 views

What is the effect of ionic concentration on the conductivity of inorganic compounds?

answered Feb 19 in Inorganic Chemistry

1 answer 89 views

How does the absorption spectra of a dye or pigment change with changing pH?

asked Feb 17 in PhotoChemistry

1 answer 76 views

How can we use photochemistry to efficiently degrade persistent organic pollutants (POPs) in contaminated air or water bodies and what are the possible by-products that may form during the process?

answered Feb 14 in PhotoChemistry

1 answer 73 views

How do persistent organic pollutants (POPs) affect the pH levels of soil and water in their respective environments?

asked Feb 14 in Environmental Chemistry

1 answer 123 views

How do the properties of liquid crystals differ from those of ordinary liquids, and what applications do these unique properties have in modern technology?

asked Feb 13 in Physical Chemistry

1 answer 126 views

What is the effect of increasing the concentration of reactants on the rate of a chemical reaction when the concentration of one product is kept constant, and the concentration of another product is gradually increased?

asked Feb 13 in Chemical kinetics

1 answer 162 views

What is the effect of fiber orientation on the mechanical properties of carbon fiber-reinforced polymer composites used in the aerospace industry?

answered Feb 13 in Polymer Chemistry

1 answer 91 views

How can the synthesis of polyacrylonitrile from acrylonitrile monomer be optimized to achieve the highest possible molecular weight of the resulting polymer?

asked Feb 11 in Chemical synthesis

1 answer 119 views

How can the specific surface area of a porous material be accurately determined using gas adsorption techniques?

asked Feb 10 in Surface Chemistry

1 answer 96 views

How can the design of a chemical reactor be optimized for the production of 1,3-butadiene from the catalytic dehydrogenation of butene at a specific temperature, pressure, and flow rate, while minimizing unwanted by-products and maximizing yield?

answered Feb 6 in Chemical engineering

1 answer 113 views

Calculate the standard enthalpy of formation for magnesium oxide (MgO) given the standard enthalpy of formation for magnesium (Mg) is -601.8 kJ/mol and the standard enthalpy of formation for oxygen (O₂) is 0 kJ/mol.

asked Feb 3 in ThermoChemistry

1 answer 181 views

How can we improve the teaching of environmental chemistry in schools to better prepare students for a future where sustainable practices are crucial for the health of our planet?

answered Jan 30 in Chemical education

1 answer 94 views

Calculate the equilibrium constant for the following electrochemical reaction at 298K:$$\ce{2Fe^3+ (aq) + 2I^- (aq) -> 2Fe^2+ (aq) + I2 (s)}$$ Given: Standard reduction potentials: $\ce{Fe^3+ + e^- -> Fe^2+}$ Eº = +0.77V $\ce{2I^- -> I2 + 2e^- }$ Eº = +0.54V

answered Jan 23 in ElectroChemistry

1 answer 88 views

Calculate the corrosion current density of a steel metal in contact with a copper metal, given that the corrosion potential of steel and copper are -0.58 V and +0.34 V, respectively. The temperature and pH of the solution are 25°C and 7, respectively. The surface area of the steel metal is 10 cm2 and the copper metal is a large area electrode.

answered Jan 23 in ElectroChemistry

1 answer 121 views

How do the coordination chemistry principles of chelation therapy contribute to the removal of toxic metal ions from the human body?

answered Jan 22 in Coordination Chemistry

1 answer 53 views

According to the social cognitive theory, how can a person's self-efficacy influence their behaviour?

answered Jan 20 in Psychology

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