Hot questions

0 votes

1 answer 73 views

What specific measures can be taken by the chemical industry to prioritize environmental chemistry and reduce the negative impact of their activities on the environment?

asked Mar 1 in Chemical education by TheScientist (138k points)

0 votes

1 answer 75 views

What is the effect of pH on the zeta potential of silica nanoparticles and how can it be measured experimentally using electrophoresis?

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

0 votes

1 answer 73 views

What are the factors that influence the formation and stability of protein-protein interactions and complexes? How can we measure and analyze these interactions?

asked Mar 1 in BioChemistry by TheScientist (138k points)

0 votes

1 answer 77 views

How does the variation in force field parameters affect the structure and stability of a DNA-protein complex in molecular dynamics simulations?

asked Feb 28 in Computational Chemistry by TheScientist (138k points)

0 votes

1 answer 75 views

What is the effect of pH on the zeta potential of colloidal particles, and how can the zeta potential measurement technique be employed to investigate this relationship?

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

0 votes

1 answer 63 views

What is the rate of diffusion of helium gas (He) in air at 25°C and a pressure of 1 atm?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

0 votes

1 answer 75 views

What is the effect of pH on the zeta potential of colloidal particles and how can it be measured using electrophoresis technique?

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

0 votes

1 answer 61 views

What is the theoretical yield and actual yield of acetylsalicylic acid obtained from the reaction of 5 grams of acetic anhydride and 3 grams of salicylic acid, given that the reaction has a 95% yield?

asked Mar 1 in Chemical synthesis by TheScientist (138k points)

0 votes

1 answer 71 views

How can we accurately calculate the electronic and optical properties of CdSe quantum dots of a specific size and shape using theoretical models in quantum chemistry?

asked Mar 1 in Quantum Chemistry by TheScientist (138k points)

0 votes

1 answer 70 views

What is the balanced redox reaction for the reaction between permanganate ion (MnO4-) and hydrogen peroxide (H2O2) in an acidic solution?

asked Mar 1 in Chemical reactions by TheScientist (138k points)

0 votes

1 answer 71 views

How can we accurately calculate the absorption and emission spectra of a given molecule using quantum chemistry methods, and what factors influence these properties?

asked Mar 1 in Quantum Chemistry by TheScientist (138k points)

0 votes

1 answer 67 views

What is the enthalpy change for the reaction 2CuO(s) + C(s) → 2Cu(s) + CO2(g) if the enthalpy of formation for CuO(s) is -159.2 kJ/mol, the enthalpy of formation for CO2(g) is -393.5 kJ/mol, and the standard enthalpy of formation for Cu(s) is 0?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

0 votes

1 answer 68 views

What is the corrosion rate of a copper metal in a seawater environment if the weight loss after 30 days of exposure is found to be 0.25 grams? (Assume a surface area of 10 cm2 and a density of copper as 8.96 g/cm3).

asked Mar 1 in ElectroChemistry by TheScientist (138k points)

0 votes

1 answer 75 views

What is the effect of a change in pH on the zeta potential of a colloidal suspension? Provide experimental evidence to support your answer.

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

0 votes

1 answer 71 views

How does the chemical structure of thymine differ from uracil and why is it important in DNA replication and repair?

asked Mar 1 in BioChemistry by TheScientist (138k points)

0 votes

1 answer 68 views

What is the corrosion rate of a steel bar in a 1 M solution of sulfuric acid at 25°C, if the bar surface area is 50 cm² and the weight loss of the bar after 24 hours of immersion in the acid is found to be 2.1 grams?

asked Mar 1 in ElectroChemistry by TheScientist (138k points)

0 votes

1 answer 72 views

What are the common reasons students struggle to understand advanced concepts in organic chemistry, and what study strategies can be employed to overcome these difficulties?

asked Mar 1 in Chemical education by TheScientist (138k points)

0 votes

1 answer 74 views

How can we use chemical methods to effectively clean up oil spills and reduce their impact on the environment?

asked Mar 1 in Environmental Chemistry by TheScientist (138k points)

0 votes

1 answer 75 views

How does the zeta potential of a colloidal solution change as pH is varied from acidic to alkaline conditions and how does this affect the stability of the colloidal system?

asked Feb 28 in Surface Chemistry by TheScientist (138k points)

0 votes

1 answer 67 views

What is the enthalpy change for the dissolution of 10 grams of NaCl in 100 mL of water at 25°C given that the enthalpy of solution of NaCl is -3.9 kJ/mol?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

Categories