Recent activity by GlendaNester

1 answer 93 views

What are the factors affecting the size and shape of nanoparticles, and how can these properties be manipulated to enhance their catalytic activity?

answered Feb 24 in Physical Chemistry

1 answer 81 views

How does the presence of different photosensitizers affect the rate of the photochemical reaction, and what is the mechanism behind this effect? Provide examples from literature to support your explanation.

asked Feb 22 in PhotoChemistry

1 answer 83 views

How does the polarity of the solvent affect the photochemical reaction rate for a specific photochemical reaction?

asked Feb 22 in PhotoChemistry

1 answer 86 views

How does the molecular weight of the polymer affect the mechanical properties of the 3D printed object?

answered Feb 21 in Materials Chemistry

1 answer 73 views

What is the mechanism for the electrophilic addition of hydrogen bromide to propene, and what is the stereochemistry of the product formed?

answered Feb 20 in Organic Chemistry

1 answer 89 views

How does the breakdown of fatty acids in adipose tissue contribute to the transport of lipids throughout the body?

answered Feb 18 in BioChemistry

1 answer 75 views

What is the balanced chemical equation for the synthesis reaction between magnesium and oxygen gas to form magnesium oxide?

answered Feb 17 in Chemical reactions

1 answer 76 views

How does the addition of stabilizing agents affect the stability of oil-in-water emulsions?

asked Feb 17 in Surface Chemistry

1 answer 77 views

What is the mechanism of the acid-catalyzed dehydration of 1-methylcyclohexanol to form 1-methylcyclohexene and how does the presence of an ether functional group affect the reaction rate and product yield?

answered Feb 17 in Organic Chemistry

1 answer 80 views

How can we optimize the critical temperature of superconducting materials through chemical doping?

answered Feb 14 in Materials Chemistry

1 answer 150 views

How to design a feasible and economical system that produces pure hydrogen fuel with a high yield while minimizing energy consumption, by utilizing the principles of chemical engineering and taking into account the potential impact on the environment?

asked Feb 12 in Chemical engineering

1 answer 134 views

How does the crystal field theory explain the color of transition metal complexes, and what is the relationship between the size of the splitting and the magnitude of the absorption?

asked Feb 12 in Coordination Chemistry

1 answer 84 views

How can chemistry-related extracurricular activities be made more widely available to students in areas where resources are limited, in order to enhance their learning and interest in the subject?

answered Feb 5 in Chemical education

1 answer 80 views

How can chemistry teachers provide better support and accommodations for students with learning disabilities to promote their success and engagement in the subject?

asked Feb 5 in Chemical education

1 answer 83 views

How can chemistry students effectively supplement limited opportunities for hands-on experimentation in the classroom to enhance their understanding of complex chemical concepts?

answered Feb 4 in Chemical education

1 answer 142 views

Calculate the standard electrode potential for the following redox reaction in acidic medium using the standard reduction potentials given below:Fe2+(aq) + MnO4-(aq) + H+(aq) → Fe3+(aq) + Mn2+(aq) + H2O(l)Standard reduction potentials:Fe3+(aq) + e- → Fe2+(aq) Eo = +0.77 VMnO4-(aq) + 8H+(aq) + 5e- → Mn2+(aq) + 4H2O(l) Eo = +1.51 V

answered Feb 3 in Chemical thermodynamics

1 answer 114 views

What are the molecular vibrational frequencies and infrared spectra of a carbon dioxide molecule? Using the principles of quantum chemistry, calculate and interpret the IR spectra of CO2, highlighting the key vibrational modes and their respective frequencies.

answered Jan 31 in Quantum Chemistry

1 answer 121 views

What is the difference between an aldehyde and a ketone, and how can you distinguish between the two using chemical reactions or tests? Provide specific examples and explain the underlying chemical principles involved.

answered Jan 31 in Organic Chemistry

1 answer 158 views

What is the concentration of iron ions in a sample of tap water using spectrophotometry?

asked Jan 30 in Analytical Chemistry

1 answer 83 views

Calculate the entropy change (∆S) for the reaction of 2 moles of solid NH4Cl with 1 mole of NaOH in a coffee cup calorimeter at a constant temperature of 25°C. The reaction takes place in 100 mL of water and produces 2 moles of NH3 and 1 mole of NaCl in solution. Assume that the specific heat capacity of water is 4.18 J/g·K and that the final solution temperature after the reaction is complete is 25°C.

asked Jan 23 in Chemical thermodynamics

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