Recent activity by LillianaY16

1 answer 31 views

How does the pH of a colloidal solution affect the stability and coagulation of the colloids? Investigate and explain the behavior of different types of colloids under varying pH conditions.

asked Feb 22 in Surface Chemistry

1 answer 21 views

What is the most efficient method for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas, and what are the optimal reaction conditions (temperature, pressure, solvent, etc.) for this synthesis process?

answered Feb 21 in Chemical synthesis

1 answer 27 views

How does the microstructure of ceramics affect their strength and thermal conductivity, and how can this be optimized for use in high-temperature applications such as in the aerospace industry?

answered Feb 20 in Materials Chemistry

1 answer 26 views

How does the excitation mechanism of a molecule affect its electronic absorption spectrum, and how can ab initio calculations be used to predict the excited state dynamics of this molecule?

answered Feb 20 in Computational Chemistry

1 answer 30 views

What is the effect of different polymer-based packaging materials on the environment and how can we design more sustainable packaging materials?

answered Feb 19 in Polymer Chemistry

1 answer 8 views

How does the coordination chemistry of metalloenzymes and metalloproteins affect their functionality and specificity towards certain substrates?

asked Feb 19 in Coordination Chemistry

1 answer 43 views

What is the role of insulin in regulating glucose metabolism in liver cells, and how does its deficiency lead to the development of Type II diabetes?

answered Feb 13 in BioChemistry

1 answer 41 views

What is the balanced chemical equation for the single replacement reaction between iron (Fe) and hydrochloric acid (HCl)?

answered Feb 13 in Chemical reactions

1 answer 37 views

How will an increase in pressure affect the equilibrium position of a chemical reaction if the reaction involves equal numbers of gaseous reactants and products, and the total number of moles of gas remains constant?

answered Feb 13 in Chemical equilibrium

1 answer 33 views

What is the effect of heavy metal contamination on the growth and nutrient levels of common agricultural crops in soil?

asked Feb 13 in Environmental Chemistry

1 answer 11 views

How can the production process of detergents be optimized to increase yield while reducing environmental impact?

asked Feb 10 in Chemical engineering

1 answer 25 views

How can the mechanical properties of polymer-based composites be improved to meet the demands of aerospace applications?

asked Feb 10 in Polymer Chemistry

1 answer 35 views

How can the mechanical and thermal properties of polymer-based composites be optimized for their efficient use in aerospace applications?

asked Feb 7 in Polymer Chemistry

1 answer 31 views

How can the efficiency of solar cells be improved by synthesizing and characterizing new materials with improved light absorption, charge transport, and stability under solar radiation?

answered Feb 7 in Materials Chemistry

1 answer 48 views

Here's a precise problem for a chemistry student:Calculate the standard enthalpy of formation of propane (C3H8) using the following information: ΔH°f CO2 = -393.5 kJ/molΔH°f H2O(l) = -285.8 kJ/molΔH°f C3H8(g) = ?

asked Feb 4 in Chemical thermodynamics

1 answer 29 views

Considering a molecule with a known ground state configuration, how can one determine the electronic excited states and their corresponding optical properties using computational methods in quantum chemistry?

asked Feb 3 in Quantum Chemistry

1 answer 56 views

Calculate the standard enthalpy of hydrolysis for Na2CO3 when 2.5 moles of water react with 1 mole of Na2CO3, given that the heat of reaction is -843.2 kJ/mol.

asked Feb 3 in ThermoChemistry

1 answer 45 views

Calculate the standard electrode potential for the redox reaction 2Fe2+(aq) + Cl2(g) → 2Fe3+(aq) + 2Cl−(aq) given that the standard reduction potential for Fe3+/Fe2+ couple is +0.771 V and E° for Cl2/Cl− couple is +1.36 V.

answered Feb 3 in Chemical thermodynamics

1 answer 56 views

How can a chemical engineer design a system for producing a natural and sustainable face moisturizer that has a shelf life of at least six months without the use of synthetic preservatives?

asked Jan 30 in Chemical engineering

1 answer 78 views

Identify the type of isomerism exhibited by the organic compounds 2-chlorobutane and 2-methylpropene and explain the difference between the two.

asked Jan 30 in Organic Chemistry

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