Recent activity by ElisabethWeo

1 answer 16 views

How does the quantity and type of protein affect the adsorption behavior on a solid surface?

asked Feb 22 in Surface Chemistry

1 answer 27 views

How does the presence of a catalyst affect the activation energy and reaction rate of a hydrolysis reaction between a carboxylic acid and an alcohol, as determined by quantum chemical calculations of the reaction mechanisms?

asked Feb 22 in Computational Chemistry

1 answer 28 views

What is the impact of pH on the zeta potential of colloidal particles and how can it be measured experimentally?

asked Feb 22 in Surface Chemistry

1 answer 28 views

How does the molecular weight of a polymer affect its melt viscosity and elasticity, as determined by rheological testing methods?

asked Feb 21 in Polymer Chemistry

1 answer 32 views

Which type of isomerism is exhibited by the coordination compound [Co(en)2Cl2]+ and what is the total number of possible isomers for this complex? Additionally, draw the structures for each isomer.

answered Feb 19 in Coordination Chemistry

1 answer 34 views

What is the polarity of the bond between oxygen and hydrogen in a water molecule?

answered Feb 18 in Chemical bonding

1 answer 36 views

How do the surface-active agents in detergents and cleaning agents interact with oil and water to effectively remove stains and grime from different surfaces?

answered Feb 17 in Surface Chemistry

1 answer 42 views

How can we predict the crystal structure of an inorganic solid with a given chemical composition using X-ray diffraction techniques and computational modeling?

asked Feb 14 in Inorganic Chemistry

1 answer 38 views

How can the synthesis of new drug molecules be optimized to target specific receptors involved in the treatment of cardiovascular diseases, such as beta-adrenergic, angiotensin, and calcium channel receptors?

asked Feb 11 in Medicinal Chemistry

1 answer 65 views

How can the size and surface properties of nanoparticles be optimized to improve drug delivery to cancer cells while minimizing toxicity to healthy cells?

answered Feb 10 in Medicinal Chemistry

1 answer 13 views

How can the properties of biomaterials be optimized to promote tissue regeneration?

asked Feb 10 in Materials Chemistry

1 answer 31 views

How can the polymerization reaction of acrylonitrile monomer be optimized to increase the production yield and molecular weight of polyacrylonitrile?

answered Feb 10 in Chemical synthesis

1 answer 52 views

How can Spectroscopic techniques be used to identify the functional groups present in an organic compound? Provide an example of how this technique can be used to determine the functional groups in a given compound.

asked Feb 5 in Organic Chemistry

1 answer 33 views

How can chemistry students in underprivileged areas access quality textbooks and resources to enhance their learning and understanding of the subject?

answered Feb 5 in Chemical education

1 answer 34 views

How can chemistry students at a school with insufficient funding for chemistry education still have access to adequate laboratory equipment and materials to conduct experiments?

answered Feb 4 in Chemical education

1 answer 32 views

How can chemistry educators increase the everyday relevance of the subject to students who have limited exposure to chemistry in their daily lives?

asked Feb 4 in Chemical education

1 answer 91 views

Design a process for the production of a biodegradable detergent that is effective in removing stains from clothes and is environmentally friendly, using renewable resources for its production. The process should take into account the cost-effectiveness, safety, and quality of the final product.

asked Feb 4 in Chemical engineering

1 answer 114 views

What is the composition of a sample solution of caffeine and aspirin using high-performance liquid chromatography (HPLC) with a C18 column and a mobile phase of acetonitrile and water containing 0.1% trifluoroacetic acid at a flow rate of 1 mL/min?

asked Jan 30 in Analytical Chemistry

1 answer 118 views

Identify the compound with the molecular formula C10H12O by interpreting its proton NMR spectrum.

answered Jan 30 in Analytical Chemistry

1 answer 80 views

Calculate the bond length between two carbon atoms in a molecule of ethane, given that the bond energy is 347 kJ/mol and the force constant is 667 N/m.

answered Jan 23 in Chemical bonding

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