Recent activity by AliceW140134

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How does the intensity of light affect the rate of the reaction between potassium permanganate and oxalic acid in acidic solution?

asked 3 days ago in Chemical kinetics

1 answer 23 views

What is the predicted color of a compound with the chemical formula CuSO4?

answered 3 days ago in Inorganic Chemistry

1 answer 19 views

How does the photochemical properties of the active layer in photovoltaic cells affect the efficiency of the cell's conversion of sunlight to electrical energy?

asked 3 days ago in PhotoChemistry

1 answer 4 views

How does the photochemical properties of chiral molecules affect their interactions with light, and what is the significance of this in the field of photochemistry?

answered 3 days ago in PhotoChemistry

1 answer 21 views

What is the mechanism of a nucleophilic substitution reaction between 1-bromobutane and sodium hydroxide in ethanol solvent? Provide the balanced chemical equation and draw the reaction mechanism, indicating the intermediates and the transition state.

answered 3 days ago in Organic Chemistry

1 answer 20 views

What is the mechanism of photoprotection by UVB/UVA filters in commercial sunscreen formulations? How can the photostability of these filters be improved to ensure greater protection against harmful UV rays?

answered 4 days ago in PhotoChemistry

1 answer 27 views

What is the mechanism by which Chlorofluorocarbons (CFCs) break down ozone molecules in the stratosphere?

answered 4 days ago in Environmental Chemistry

1 answer 31 views

How does the binding affinity between DNA and transcription factors affect gene expression regulation?

answered Feb 17 in BioChemistry

1 answer 37 views

What are the factors that influence the synthesis and properties of metal-organic frameworks, and how can these frameworks be tuned for specific applications in gas storage and separation?

answered Feb 13 in Coordination Chemistry

1 answer 38 views

How does increasing temperature affect the rate of a photochemical reaction involved in the formation of ozone from oxygen molecules?

asked Feb 13 in PhotoChemistry

1 answer 31 views

Identify and explain the types of isomerism present in the coordination compound [Co(en)2Cl2]+.

asked Feb 13 in Coordination Chemistry

1 answer 50 views

How can the properties of ceramics, such as thermal conductivity and mechanical strength, be optimized for high-temperature applications such as in furnace linings or jet engine components?

asked Feb 10 in Materials Chemistry

1 answer 24 views

How can the performance of polymer-based membranes for water treatment be improved by altering their chemical structure and properties?

asked Feb 10 in Polymer Chemistry

1 answer 29 views

How can the medicinal chemistry approach be utilized to develop novel, effective treatments for inflammatory bowel disease (IBD)?

answered Feb 10 in Medicinal Chemistry

1 answer 41 views

How can limited opportunities for hands-on experimentation in chemistry affect a student's overall understanding and appreciation of the subject?

asked Feb 5 in Chemical education

1 answer 50 views

Explain the differences in the photochemical properties of transition metal complexes based on their ligand environments.

asked Feb 4 in PhotoChemistry

1 answer 41 views

Calculate the vibrational frequencies and infrared spectra for a molecule of carbon dioxide (CO2) using quantum chemistry methods.

asked Feb 3 in Quantum Chemistry

1 answer 43 views

Calculate the standard free energy change (ΔG°) for the following redox reaction: Zn (s) + 2H+ (aq) → Zn2+ (aq) + H2 (g)Given: ΔG°f (Zn2+) = -153.9 kJ/mol ΔG°f (H+) = 0 kJ/mol ΔG°f (H2) = 0 kJ/mol ΔG°f (Zn) = 0 kJ/mol

asked Feb 3 in Chemical thermodynamics

1 answer 57 views

Calculate the resistance of an electrochemical cell constructed by using a copper electrode in a 1M copper (II) sulfate solution and a zinc electrode in a 1M zinc sulfate solution. The measured potential difference of the cell is 1.45 volts. The area of each electrode is 10cm² and the length of wire connecting the electrodes is 30cm with a cross-sectional area of 1 mm². The conductivity of copper (II) sulfate and zinc sulfate solutions at the given concentration is 98.3% and 89.9% respectively. What is the resistance (in ohms) of the electrochemical cell?

asked Feb 3 in ElectroChemistry

1 answer 54 views

How can Raman spectroscopy be used to distinguish between different isomers of a compound in a sample?

asked Jan 29 in Analytical Chemistry

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