Recent activity by CecileODrisc

1 answer 31 views

What is the impact of pH on the measured zeta potential of a metal oxide particle, and how can this be utilized for controlling the stability of colloidal suspensions in different pH conditions?

asked Feb 22 in Surface Chemistry

1 answer 33 views

How does the body synthesize essential and non-essential amino acids, and what are the biochemical pathways involved in their metabolism?

asked Feb 20 in BioChemistry

1 answer 32 views

What is the effect of pH on the electrokinetic potential of a colloidal particle in an aqueous solution?

answered Feb 19 in Surface Chemistry

1 answer 30 views

What are the factors that influence the coordination chemistry of metalloporphyrins and metallophthalocyanines, and how does changing the metal ion affect their properties and reactivity?

asked Feb 19 in Coordination Chemistry

1 answer 41 views

How does the breakdown of amino acids differ between humans and bacteria?

answered Feb 18 in BioChemistry

1 answer 32 views

What is the mechanism of phosphorescence in organic molecules, and how are the photochemical properties of these materials affected by changes in their molecular structure or environment?

answered Feb 14 in PhotoChemistry

1 answer 70 views

What conditions are required for the successful synthesis of high molecular weight polypropylene using Ziegler-Natta catalysts from propylene monomer?

answered Feb 13 in Chemical synthesis

1 answer 80 views

What is the effect of changing the concentration of reactants on the reaction rate for a first-order reaction?

answered Feb 13 in Chemical kinetics

1 answer 89 views

How can the production process for adhesives be optimized to increase the efficiency and reduce the environmental impact of the manufacturing process in chemical engineering?

answered Feb 10 in Chemical engineering

1 answer 35 views

How can the electrical conductivity of a polymer-based electronic material be optimized for use in electronic devices without sacrificing its mechanical and thermal properties?

answered Feb 7 in Polymer Chemistry

1 answer 51 views

How can the efficiency of industrial waste disposal methods be improved to minimize their negative impact on the environment?

asked Feb 7 in Environmental Chemistry

1 answer 33 views

How can polymer-based sensors be used to detect and measure the concentration of a specific gas or chemical in the environment?

answered Feb 5 in Polymer Chemistry

1 answer 132 views

How does atomic structure affect the periodic trends of elements, and how can this knowledge help us better understand the placement of elements in the periodic table?

asked Jan 31 in Chemical education

1 answer 113 views

What is the energy difference between the ground state and the first excited state of a molecule of benzene, calculated using time-dependent density functional theory (TD-DFT)?

asked Jan 31 in Computational Chemistry

1 answer 91 views

How can the understanding of the role of chemistry in society and the economy be improved in order to increase the public's appreciation and support for the field?

answered Jan 30 in Chemical education

1 answer 130 views

What is the concentration of iron (Fe) present in a given water sample using colorimetry as the analytical method, given that the absorbance at a wavelength of 565 nm is 0.423 and the molar absorptivity of the Fe-phenanthroline complex is 11,100 M^-1 cm^-1?

asked Jan 30 in Analytical Chemistry

1 answer 61 views

How can Raman spectroscopy be used to identify the presence of a specific organic compound in a mixture containing a variety of other compounds?

asked Jan 29 in Analytical Chemistry

1 answer 63 views

How can electrophoresis be utilized to determine the relative proportions and molecular weights of proteins within a given sample?

asked Jan 29 in Analytical Chemistry

1 answer 65 views

How can electrophoresis be used to determine the composition of a protein sample, and what are the key factors that impact the accuracy and precision of this type of analysis?

answered Jan 29 in Analytical Chemistry

1 answer 98 views

A chemist has a sample of an unknown compound with a mass of 5.00 g. After analyzing the sample, the following results were obtained: 0.50 g of oxygen, 1.25 g of carbon, and 3.25 g of hydrogen. Calculate the molecular formula of the unknown compound using mass balance calculations.

answered Jan 22 in Analytical Chemistry

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