Recent activity by GabrieleVanw

1 answer 3 views

How does the pore size and shape of zeolites affect their catalytic activity in the cracking of hydrocarbons? Use computational methods to predict the optimal pore size and shape for maximizing catalytic activity for a particular hydrocarbon.

asked 3 days ago in Computational Chemistry

1 answer 23 views

What factors influence the photochemical properties of nanoparticles and how can these properties be controlled to optimize their performance in various applications?

asked 3 days ago in PhotoChemistry

1 answer 17 views

How does the orientation of reactant molecules affect the rate of a chemical reaction and what experimental methods can be used to investigate this effect?

asked 3 days ago in Chemical kinetics

1 answer 26 views

What is the effect of an increase in temperature on the ionization constant, Ka, of a weak acid with an initial concentration of 0.1 M and a pKa of 4.74? If the temperature is increased from 25°C to 35°C, what would be the new value for Ka?

answered 4 days ago in Chemical equilibrium

1 answer 19 views

Identify the type of inorganic compound formed between magnesium and chlorine.

answered 5 days ago in Inorganic Chemistry

1 answer 28 views

What is the effect of pH on the electrokinetic potential of colloidal particles in a solution of known ionic strength?

asked 5 days ago in Surface Chemistry

1 answer 21 views

What is the effect of different solvents on the fluorescence intensity of Rhodamine B?

asked 5 days ago in PhotoChemistry

1 answer 13 views

What is the bond energy of the double bond between carbon and oxygen in a carbon dioxide molecule?

asked Feb 18 in Chemical reactions

1 answer 21 views

What is the difference between primary, secondary, and tertiary amines? Provide an example of each one and explain how their properties and reactivity vary.

asked Feb 14 in Organic Chemistry

1 answer 30 views

How can we predict the color of transition metal complexes based on their electronic configurations and ligands?

answered Feb 14 in Inorganic Chemistry

1 answer 40 views

How can we optimize the processing conditions (temperature, pressure, residence time, etc.) for the manufacturing of a high-density polyethylene (HDPE) product with desired mechanical properties and enhanced resistance to environmental stress cracking?

asked Feb 14 in Polymer Chemistry

1 answer 34 views

What hybrid orbitals are present in the central atom of a molecule of carbon dioxide (CO2)?

asked Feb 13 in Chemical bonding

1 answer 40 views

What is the predicted color of copper(II) sulfate pentahydrate ([Cu(H2O)4]SO4•H2O) based on its electronic configuration?

asked Feb 12 in Inorganic Chemistry

1 answer 69 views

How can the synthesis of metal-organic frameworks (MOFs) be optimized to improve their stability and efficiency in gas separation applications?

answered Feb 11 in Materials Chemistry

1 answer 48 views

How can the synthesis of metal nanoparticles using eco-friendly methods be improved for better yield and size control?

answered Feb 11 in Materials Chemistry

1 answer 39 views

How can technology be effectively integrated into the teaching and learning of chemical education, and what strategies can be used to overcome the difficulties faced in incorporating technology into chemistry education?

answered Feb 6 in Chemical education

1 answer 33 views

How can small molecule inhibitors be designed and synthesized to target specific inflammatory pathways and effectively treat inflammatory diseases such as rheumatoid arthritis or Crohn's disease?

asked Feb 5 in Medicinal Chemistry

1 answer 45 views

Calculate the standard enthalpy change for the reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) Given the following standard enthalpy of formation values: ΔHf° [Fe2O3(s)] = -824 kJ/mol ΔHf° [CO(g)] = -110 kJ/mol ΔHf° [CO2(g)] = -393.5 kJ/mol ΔHf° [Fe(s)] = 0 kJ/mol.

answered Feb 3 in Chemical thermodynamics

1 answer 42 views

Calculate the standard enthalpy change for the reaction: 2 Al(s) + 3/2 O2(g) → Al2O3(s) given the following information: ΔH°f[Al2O3(s)] = -1676.0 kJ/mol ΔH°f[Al(s)] = 0 kJ/mol ΔH°f[O2(g)] = 0 kJ/mol

answered Feb 3 in Chemical thermodynamics

1 answer 76 views

What is the impact of carbon dioxide on global warming and how does it contribute as a greenhouse gas?

asked Jan 31 in Environmental Chemistry

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