Recent activity by LaunaRxf8120

1 answer 70 views

What is the relationship between zeta potential and colloidal stability? How can zeta potential be measured experimentally? What factors affect the zeta potential of a particular colloidal system?

answered Feb 24 in Surface Chemistry

1 answer 79 views

How does the regulation of protein degradation and turnover impact the cellular level of protein expression, and how can we manipulate these mechanisms to target specific proteins for degradation in order to treat diseases?

asked Feb 24 in BioChemistry

1 answer 77 views

What is the mechanism of the photochemical reaction of benzene with chlorine, and how does the substitution pattern of the resulting chlorobenzene differ from that of a typical electrophilic aromatic substitution?

asked Feb 22 in PhotoChemistry

1 answer 90 views

What is the mechanism behind the photochemical properties of photovoltaic materials and how does it affect their efficiency in converting light into electricity?

answered Feb 20 in PhotoChemistry

1 answer 87 views

How does the chemical structure of a polymer affect its mechanical properties when used in 3D printing, and what are the most suitable polymers for producing robust and functional 3D printed objects?

answered Feb 18 in Materials Chemistry

1 answer 146 views

What is the effect of intermolecular non-covalent interactions on the stability of protein-ligand complexes, and how can we quantify and predict them using quantum chemical calculations?

asked Feb 13 in Computational Chemistry

1 answer 99 views

What conditions are needed for the catalytic polymerization of ethylene monomers in order to obtain high molecular weight polyethylene?

answered Feb 13 in Chemical synthesis

1 answer 117 views

How can the synthesis of polyvinylpyrrolidone be optimized to achieve the highest possible molecular weight and degree of polymerization, while minimizing the formation of undesirable byproducts and maintaining a high yield?

asked Feb 11 in Chemical synthesis

1 answer 91 views

How can the physical and chemical properties of polymeric drug delivery systems be optimized to increase drug effectiveness while minimizing side effects?

answered Feb 10 in Polymer Chemistry

1 answer 83 views

How can the molecular weight and properties of polystyrene be manipulated by changing the reaction parameters during the synthesis process from styrene monomer?

asked Feb 10 in Chemical synthesis

1 answer 91 views

How can chemistry students enhance their learning experience and acquire practical skills in the absence of hands-on experimentation opportunities?

answered Feb 4 in Chemical education

1 answer 135 views

Determine the zeta potential of silver nanoparticles using the electrophoretic mobility measured at different pH values ranging from 3 to 9.

answered Feb 4 in Surface Chemistry

1 answer 174 views

Determine the VSEPR geometry of PCl5 molecule and predict the bond angles.

asked Feb 4 in Chemical bonding

1 answer 184 views

Design and develop a polymer-based sensor that can detect the presence of ethanol in water up to a concentration of 50 mg/L with high sensitivity and selectivity. Evaluate the performance of the sensor and compare it with other existing ethanol sensors in terms of sensitivity, selectivity, response time, and stability.

asked Feb 4 in Polymer Chemistry

1 answer 125 views

Calculate the standard enthalpy of formation of C2H6(g) given the following information: C(s) + O2(g) → CO2(g); ΔH° = -393.5 kJ/mol H2(g) + 1/2 O2(g) → H2O(l); ΔH° = -285.8 kJ/mol 2C(s) + 3H2(g) → C2H6(g); ΔH° = ?

asked Feb 3 in ThermoChemistry

1 answer 124 views

What is the difference between an aldehyde and a ketone and how can they be distinguished using a simple chemical test?

asked Jan 31 in Organic Chemistry

1 answer 163 views

How can a medicinal chemist develop a new treatment for cardiovascular diseases that targets the underlying causes of the disease, such as arterial stiffness and atherosclerosis, while also minimizing potential side effects on other physiological processes in the body?

asked Jan 30 in Medicinal Chemistry

1 answer 83 views

How can a medicinal chemist design a drug to selectively target the enzyme (or receptor) of interest and avoid non-specific interactions with other proteins in the body?

asked Jan 30 in Medicinal Chemistry

1 answer 100 views

Calculate the entropy change of the following reaction at 25°C and 1 atm pressure:2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g)Given the standard entropy values are:ΔS°NH3 = 192.5 J/K•molΔS°Cl2 = 223.1 J/K•molΔS°N2 = 191.6 J/K•molΔS°HCl = 186.9 J/K•mol

answered Jan 23 in Chemical thermodynamics

1 answer 109 views

How many different isomers can be obtained from hexane (C6H14)? Provide the structural formula of each isomer.

answered Jan 21 in Organic Chemistry

Recent activity by LaunaRxf8120

Categories