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How does the concentration of reactants affect the reaction rate of the reaction between sodium thiosulphate and hydrochloric acid?

answered Feb 24 in Chemical kinetics

1 answer 58 views

How do the properties of the polymer coating, such as adhesion, hardness, and scratch resistance, affect its performance in protecting surfaces from environmental factors like UV radiation, water exposure, and corrosive materials?

answered Feb 22 in Polymer Chemistry

1 answer 33 views

What is the step-wise mechanism for the preparation of 2-chloro-4-nitroaniline from aniline and chlorine gas?

asked Feb 22 in Chemical synthesis

1 answer 28 views

How does the length and conjugation of a polymer chain affect its electronic and optical properties?

answered Feb 20 in Quantum Chemistry

1 answer 26 views

What is the equilibrium constant expression for the ionization of acetic acid (CH3COOH) in water, and what is the value of the equilibrium constant at 25°C?

answered Feb 20 in Chemical equilibrium

1 answer 31 views

What is the impact of different reactant orientations on the reaction rate between X and Y molecules in a gas-phase reaction under controlled temperature and pressure conditions?

answered Feb 20 in Chemical kinetics

1 answer 40 views

What is the optimum temperature and pressure needed to prepare 2,4-dichlorobenzoic acid from benzoic acid and chlorine gas using Friedel-Crafts acylation reaction? Additionally, what is the yield of the reaction under these conditions?

asked Feb 20 in Chemical synthesis

1 answer 31 views

What is the electronic band structure of a graphene sheet using density functional theory calculations?

asked Feb 20 in Computational Chemistry

1 answer 22 views

What is the effect of different metal ions on the electrochemical properties of metalloporphyrins and metallophthalocyanines? Compare and contrast the behavior of two different metalloporphyrins or metallophthalocyanines containing different metal ions.

asked Feb 20 in Coordination Chemistry

1 answer 26 views

What is the efficiency of activated carbon in removing a specific pollutant from water under varying conditions such as temperature, pH, and contact time?

answered Feb 20 in Surface Chemistry

1 answer 14 views

How does the compatibility of two polymers affect the mechanical properties of their blend?

answered Feb 18 in Polymer Chemistry

1 answer 26 views

How does the addition of electron-donating or electron-withdrawing substituents affect the electronic and optical properties of conjugated polymers, and how can these changes be accurately calculated using quantum chemistry methods?

answered Feb 17 in Quantum Chemistry

1 answer 35 views

How does the surface modification of polymers affect their hydrophobicity and adhesion properties?

answered Feb 17 in Surface Chemistry

1 answer 42 views

What are the synthesis methods and structural properties of metallofullerenes and metalloclusters in coordination chemistry, and how do these properties affect their potential applications in materials science and biomedicine?

asked Feb 13 in Coordination Chemistry

1 answer 55 views

What are the chemical mechanisms behind the process of eutrophication and how do they lead to harmful algal blooms and oxygen depletion in aquatic ecosystems?

asked Feb 13 in Environmental Chemistry

1 answer 28 views

What is the specific chemical reaction that occurs during DNA replication, and how does the cell ensure that errors in the DNA sequence are corrected during the replication process?

asked Feb 13 in BioChemistry

1 answer 113 views

How can we design drugs that target specific genetic mutations causing genetic disorders such as cystic fibrosis or sickle cell anemia, while avoiding negative side effects on healthy cells and organs?

asked Feb 12 in Medicinal Chemistry

1 answer 28 views

How can we design a treatment system that efficiently removes heavy metals from industrial wastewater, considering factors like cost-effectiveness, environmental impact, and regulatory compliance?

answered Feb 12 in Chemical engineering

1 answer 96 views

How can the synthesis and characterization of new materials be optimized to improve the efficiency of solar cells?

answered Feb 11 in Materials Chemistry

1 answer 51 views

How can school administrators encourage the development of more chemistry-related extracurricular activities to provide students with better opportunities to enhance their chemistry skills and knowledge?

answered Feb 5 in Chemical education

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