Recent activity by LillyHoskins

1 answer 19 views

How does the polarity of the solvent affect the rate of a photochemical reaction between a specific chromophore and the solvent?

answered 3 days ago in PhotoChemistry

1 answer 22 views

The question for the chemistry student to solve is: How does pH affect the stability and coagulation of a colloidal solution?

answered 3 days ago in Surface Chemistry

1 answer 15 views

What is the most efficient process for the industrial production of a food additive such as xanthan gum, which meets all necessary standards and regulations for food safety and quality?

answered 3 days ago in Chemical engineering

1 answer 22 views

Identify the mechanism and the major product formed in the following reaction: CH3CH2Br + OH- → CH3CH2OH + Br- Also, determine whether it undergoes an SN1, SN2, E1, or E2 mechanism and provide a detailed explanation for your choice.

answered 5 days ago in Organic Chemistry

1 answer 26 views

How does the degree of conjugation in a π-system affect the energy of the HOMO and LUMO orbitals of a molecule, and how can this information be obtained from quantum chemical calculations of excited states?

asked 6 days ago in Computational Chemistry

1 answer 36 views

How does the choice of basis set affect the accuracy of density functional theory calculations of the electronic properties of transition metal compounds?

answered Feb 18 in Computational Chemistry

1 answer 34 views

How does the Calvin cycle, a biochemical pathway used by photosynthetic organisms to fix carbon dioxide, specifically convert carbon dioxide into glucose molecules?

answered Feb 18 in BioChemistry

1 answer 21 views

What is the effect of temperature and pressure on the adsorption of gases on solid surfaces?

asked Feb 17 in Surface Chemistry

1 answer 16 views

How does the addition of different functional groups affect the mechanical properties of biodegradable polymers used in biomedical applications?

answered Feb 17 in Materials Chemistry

1 answer 11 views

How to design a process for the production of pure nitrogen gas on an industrial scale using pressure swing adsorption (PSA) technology?

asked Feb 12 in Chemical engineering

1 answer 2 views

How can we design a new drug molecule for treating eczema that can penetrate the skin barrier and target the underlying inflammatory response in the skin cells?

asked Feb 12 in Medicinal Chemistry

1 answer 19 views

How can the efficiency of the detergent production process be improved while maintaining its quality and reducing environmental impact?

asked Feb 7 in Chemical engineering

1 answer 44 views

How can molecular docking studies be used to predict the binding affinity of a drug molecule to a protein target and ultimately aid in the discovery of new drug candidates?

answered Feb 5 in Computational Chemistry

1 answer 42 views

How can a chemist develop a process for the efficient production of 1,4-dioxane, a key intermediate in the production of polymers and solvents, using the principles of chemical engineering? Consider factors such as reaction conditions, catalyst selection, and process optimization to maximize yield and minimize waste.

answered Feb 4 in Chemical engineering

1 answer 57 views

Calculate the standard enthalpy change for the phase transition reaction of solid ammonium nitrate (NH4NO3) to gaseous NH3 and NO2, given that the standard enthalpy of formation for solid NH4NO3 is -365.5 kJ/mol, the standard enthalpy of formation for NH3(g) is -46.1 kJ/mol, and the standard enthalpy of formation for NO2(g) is 33.2 kJ/mol.

asked Feb 3 in Chemical thermodynamics

1 answer 64 views

How do changes in the electronic structure of reactants affect the rate and mechanism of electron transfer processes during redox reactions?

asked Jan 31 in Quantum Chemistry

1 answer 79 views

What is the reaction catalyzed by alanine amino transferase (ALT) and what is its role in amino acid metabolism? How does the balance of amino acids affect the function of ALT?

answered Jan 31 in BioChemistry

1 answer 83 views

How does the pH value of water bodies affected by acid rain change over time, and how does this impact the aquatic life inhabiting those water bodies?

asked Jan 30 in Environmental Chemistry

1 answer 53 views

How does the application of ab initio calculations help in determining the electronic structure and molecular properties of small molecules such as H2, O2, and N2, and what are the practical applications of these calculations in the field of chemistry?

answered Jan 30 in Computational Chemistry

1 answer 56 views

Calculate the heat required to sublime 10 grams of dry ice (carbon dioxide) at its melting point (-78.5°C) and convert it to a gas at its boiling point (-57°C). The heat of sublimation of carbon dioxide is 25.2 kJ/mol.

asked Jan 23 in ThermoChemistry

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