Recent activity by IsabellFrome

1 answer 19 views

How does the selectivity of hydrocarbon oxidation on metal surfaces vary with changes in reaction conditions such as temperature, pressure and gas composition?

asked 1 day ago in Surface Chemistry

1 answer 21 views

What are the most environmentally friendly and sustainable polymer-based packaging materials that can be used as alternatives to traditional plastics and how can their production processes be optimized to minimize their environmental impact?

asked 4 days ago in Polymer Chemistry

1 answer 21 views

What is the coordination geometry of the metal center in the enzyme myoglobin? How does this geometry affect the binding and release of oxygen?

asked 4 days ago in Coordination Chemistry

1 answer 22 views

How does the electronic structure of a material affect its electrical conductivity, and can this be accurately predicted using density functional theory calculations?

asked 5 days ago in Computational Chemistry

1 answer 22 views

What is the effect of different light intensities (low, medium and high) on the rate of photochemical reactions of Chlorophyll pigment present in Spinach leaves?

asked 6 days ago in PhotoChemistry

1 answer 16 views

What is the effect of changing the concentration of reactants on the reaction rate and how does it differ for reactions with different mechanisms?

asked 6 days ago in Chemical kinetics

1 answer 21 views

How does the coordination chemistry of iron in the active site of hemoglobin allow for transport of oxygen in the bloodstream?

answered 6 days ago in Coordination Chemistry

1 answer 24 views

How does the choice of adhesive or coating affect the surface properties of a material, and how can these properties be optimized for specific applications?

answered Feb 18 in Surface Chemistry

1 answer 29 views

What is the carbon footprint of a typical household and how can it be reduced through the adoption of environmentally-friendly practices?

asked Feb 18 in Environmental Chemistry

1 answer 23 views

What is the mechanism for the acid-catalyzed cleavage of an ether with HBr, and how does it differentiate between primary, secondary, and tertiary ethers? Provide an example of the reaction and explain the stereochemistry of the product formed.

answered Feb 17 in Organic Chemistry

1 answer 30 views

What is the number of electrons that are transferred in the following reaction: MnO4- + 8H+ + 5e- → Mn2+ + 4H2O

answered Feb 13 in ElectroChemistry

1 answer 33 views

How can the design of a system for the production of flavors in the food industry be optimized from a chemical engineering standpoint to ensure safe and efficient production while maintaining high-quality flavor characteristics?

answered Feb 7 in Chemical engineering

1 answer 34 views

How can chemistry students obtain necessary laboratory skills and experience when they have limited access to laboratory equipment and facilities?

asked Feb 5 in Chemical education

1 answer 10 views

How can chemical education be redesigned to increase representation and diversity in the chemistry field, and why is diversity important for the advancement of the field?

asked Feb 4 in Chemical education

1 answer 52 views

Given the following electrochemical reaction: Cu(s) + 2 Ag+(aq) → Cu2+(aq) + 2 Ag(s)Calculate the cell potential at standard conditions (298 K, 1 atm, 1 M concentrations).

asked Feb 4 in ElectroChemistry

1 answer 51 views

Design a distillation column to separate a mixture of ethanol and water using McCabe-Thiele Method. The feed contains 50 mol% ethanol and the distillate should have a purity of at least 95 mol% ethanol. The reflux ratio is 2.5 and the boil-up ratio is 1.5. The column must have 10 theoretical plates. Determine the number of trays above the feed and below the feed and the corresponding compositions of the distillate and bottoms.

answered Feb 4 in Chemical engineering

1 answer 34 views

Calculate the standard enthalpy change for the neutralization reaction between hydrochloric acid and sodium hydroxide, given the balanced chemical equation: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l) and the enthalpy change of formation values: ∆Hf°(NaCl(aq)) = -407.3 kJ/mol ∆Hf°(H2O(l)) = -285.83 kJ/mol ∆Hf°(HCl(aq)) = -167.2 kJ/mol ∆Hf°(NaOH(aq)) = -469.11 kJ/mol

asked Feb 3 in Chemical thermodynamics

1 answer 42 views

Calculate the standard electrode potential for the reaction Ag+ (aq) + Cu (s) → Ag (s) + Cu2+ (aq) given that the standard electrode potentials for Ag+ (aq) + e- → Ag (s) and Cu2+ (aq) + 2e- → Cu (s) are 0.80 V and 0.34 V respectively.

asked Feb 3 in Chemical thermodynamics

1 answer 10 views

How does the mechanism of carbon fixation during photosynthesis in plants involve the enzymes ribulose bisphosphate carboxylase-oxygenase (RuBisCO) and phosphoenolpyruvate carboxylase (PEPC) and what is its significance in the contribution of atmospheric CO2 absorption?

answered Jan 31 in BioChemistry

1 answer 91 views

What is the concentration of chloride ions in a sample of seawater, measured in parts per million (ppm), using potentiometry analysis?

asked Jan 30 in Analytical Chemistry

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