Recent activity by RobtGranier

1 answer 19 views

How does the size and shape of metal ions affect the stability and selectivity of metal-organic frameworks?

answered 1 day ago in Computational Chemistry

1 answer 26 views

What is the effect of different wavelengths of light on the rate of a reaction between hydrogen peroxide and potassium iodide solution, and how does this relate to the activation energy of the reaction?

answered 3 days ago in Chemical kinetics

1 answer 21 views

How does the pH level affect the rate of the photochemical reaction for the process of hydrogen peroxide degradation under UV light?

asked 3 days ago in PhotoChemistry

1 answer 21 views

What is the effect of temperature and polarity on the orientational ordering of nematic liquid crystals?

answered 3 days ago in Physical Chemistry

1 answer 23 views

What is the effect of the excitation wavelength on the quantum yield and fluorescence lifetime of a commercial fluorescent dye? Can you explain the mechanism behind these effects?

asked 5 days ago in PhotoChemistry

1 answer 31 views

How does the coordination number and the nature of the ligands affect the crystal field splitting energies in transition metal complexes? Provide an example to illustrate your point.

answered 6 days ago in Coordination Chemistry

1 answer 20 views

What is the critical temperature of a substance and how does it affect its phase behavior? Provide an example with the phase diagram of CO2 to illustrate your answer.

asked 6 days ago in Physical Chemistry

1 answer 24 views

What is the balanced chemical equation for the precipitation reaction between silver nitrate and sodium chloride? Express the equation in terms of the molecular formula and also identify the type of reaction.

answered Feb 17 in Chemical reactions

1 answer 25 views

How does surface modification of polymers using plasma treatment impact the surface energy and wettability of the polymer?

asked Feb 17 in Surface Chemistry

1 answer 27 views

What factors affect the solubility of a substance in a solvent, and how can we use this knowledge to determine the solubility of a given substance in a particular solvent?

asked Feb 14 in Chemical bonding

1 answer 41 views

What specific compounds are present in a sample of an unknown substance using Raman spectroscopy and how can we identify and quantify them?

answered Feb 14 in Analytical Chemistry

1 answer 42 views

What is the effect of ligand substitution on the thermodynamic stability of a coordination complex? Provide specific examples of ligand substitution reactions and their respective stability constants to support your answer.

asked Feb 13 in Coordination Chemistry

1 answer 9 views

How can the synthesis and characterization of coordination compounds be used to design more effective chemotherapy drugs for cancer treatment?

asked Feb 11 in Coordination Chemistry

1 answer 43 views

How can the structure of molecules be optimized to enhance the effectiveness of new treatments for respiratory diseases targeting specific neurotransmitter receptors in the lungs?

answered Feb 11 in Medicinal Chemistry

1 answer 45 views

How can the relative stabilities of different inorganic compounds be predicted based on their enthalpies of formation and bond energies?

asked Feb 10 in Inorganic Chemistry

1 answer 42 views

How can the durability and adhesion properties of polymer-based coatings and paints be improved for use on metal surfaces in harsh environments?

asked Feb 7 in Polymer Chemistry

1 answer 28 views

How can chemistry teachers spark interest in the subject among students who perceive it as difficult and uninteresting?

answered Feb 5 in Chemical education

1 answer 10 views

How can chemistry educators improve the emphasis on safety protocols in chemistry labs to ensure that students are better prepared for chemical hazards that can occur during experiments and research?

asked Feb 4 in Chemical education

1 answer 53 views

Consider a zinc electrode in a concentration cell that is connected to a copper electrode through a salt bridge. During the electrolysis of an aqueous solution of ZnSO4, a current of 2.5 A is passed through the cell for 20 minutes. Calculate the mass of zinc deposited on the electrode during this time assuming 100% efficiency. (Molar mass of zinc = 65.38 g/mol)

asked Feb 3 in ElectroChemistry

1 answer 27 views

Calculate the standard enthalpy of reduction for the following reaction: Fe2O3 (s) + 3 H2(g) → 2 Fe(s) + 3 H2O(g)Given: ΔH°f for Fe2O3 (s) = -824.2 kJ/mol ΔH°f for H2O(g) = -241.8 kJ/molΔH°f for Fe(s) = 0 kJ/mol

asked Feb 3 in ThermoChemistry

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