Recent activity by BarbraBelang

1 answer 85 views

What is the reaction mechanism for the thermal polymerization of adipic acid and hexamethylenediamine to produce nylon-6,6, and how does the process affect the properties and characteristics of the final polymer product?

asked Feb 22 in Chemical synthesis

1 answer 84 views

What is the rate constant of the reaction between zinc and hydrochloric acid at room temperature?

asked Feb 22 in Inorganic Chemistry

1 answer 87 views

What is the polarity of a bond between nitrogen and oxygen in NO2?

asked Feb 22 in Chemical bonding

1 answer 83 views

How does the cooling rate affect the morphology and crystal structure of a polymer during crystallization?

answered Feb 19 in Polymer Chemistry

1 answer 80 views

What is the chemical process involved in the conversion of a carboxylic acid to a corresponding acid anhydride and how does the reaction mechanism differ when using a carboxylic acid chloride instead?

answered Feb 19 in Organic Chemistry

1 answer 89 views

What is the effect of the concentration of the inorganic compound on its conductivity?

answered Feb 19 in Inorganic Chemistry

1 answer 93 views

How does the surface morphology of a substrate affect the enhancement factor in surface-enhanced Raman spectroscopy?

answered Feb 17 in Surface Chemistry

1 answer 95 views

How does pH affect the electrokinetic phenomena in colloidal systems? Specifically, what is the effect of varying pH on zeta potential and electrophoretic mobility?

answered Feb 14 in Surface Chemistry

1 answer 121 views

How do intermolecular interactions and solvation effects affect the thermodynamics and kinetics of chemical reactions in solutions?

asked Feb 13 in Quantum Chemistry

1 answer 136 views

What is the bond order of the nitrogen molecule (N2) and how is it determined through molecular orbital theory?

answered Feb 13 in Chemical bonding

1 answer 150 views

What type of intermolecular forces are present in a water (H2O) molecule? Provide specific examples that support your answer.

asked Feb 13 in Chemical bonding

1 answer 129 views

What is the net energy yield (in ATP) of glycolysis and gluconeogenesis, and how does this value differ between the two pathways?

answered Feb 13 in BioChemistry

1 answer 115 views

What is the effect of crosslinking on the mechanical properties of polymer materials used in biomedical applications and how does it impact their biocompatibility and usability for specific medical devices?

asked Feb 12 in Materials Chemistry

1 answer 172 views

How does the presence of chaperone proteins affect the folding of newly synthesized proteins?

asked Feb 12 in BioChemistry

1 answer 109 views

How can the properties and behavior of crude oil be manipulated or controlled to minimize the environmental impact of an oil spill?

asked Feb 10 in Environmental Chemistry

1 answer 91 views

How can the efficiency of a heat exchanger be optimized for a specific reaction process involving the synthesis of a particular chemical compound?

answered Feb 7 in Chemical engineering

1 answer 92 views

How can the adhesive strength of a polymer-based adhesive be improved for bonding plastics?

answered Feb 6 in Polymer Chemistry

1 answer 98 views

How can computational methods be utilized to predict and optimize the adsorption properties of metal-organic frameworks for the efficient removal of carbon dioxide from flue gas?

answered Feb 6 in Computational Chemistry

1 answer 139 views

Calculate the standard enthalpy change for the reaction between hydrochloric acid (HCl) and ammonia (NH3) to produce ammonium chloride (NH4Cl) if the reaction is carried out in a solution of water (H2O), given the following information:HCl(aq) + H2O(l) -> H3O+(aq) + Cl-(aq) ΔH1 = -74.8 kJ/mol NH3(aq) + H2O(l) ⇌ NH4+(aq) + OH-(aq) ΔH2 = -51.8 kJ/mol NH4Cl(s) → NH4+(aq) + Cl-(aq) ΔH3 = 15.2 kJ/mol Ensure that the answer is in kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 161 views

What are the functional groups present in an unknown organic compound and what are their characteristic infrared absorption frequencies as determined through infrared spectroscopy analysis?

asked Jan 30 in Analytical Chemistry

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