Recent activity by JaninaStroh

1 answer 79 views

What is the effect of pH on the rate of the reaction between hydrochloric acid (HCl) and sodium thiosulphate (Na2S2O3) in terms of reaction rate and reaction mechanism?

asked Feb 22 in Chemical kinetics

1 answer 73 views

How does the rate of the chemical reaction between hydrogen and oxygen change as the pressure is increased from 1 atm to 5 atm at a constant temperature of 25°C?

asked Feb 22 in Chemical kinetics

1 answer 75 views

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

answered Feb 22 in Chemical synthesis

1 answer 71 views

What is the predicted bond angle for a water molecule (H2O)? Provide a detailed explanation of the factors that determine the bond angle and how they contribute to the specific angle observed in water.

asked Feb 22 in Chemical bonding

1 answer 69 views

What is the oxidation state of the sulfur atom in sulfuric acid (H2SO4)?

answered Feb 22 in ElectroChemistry

1 answer 78 views

What is the effect of changing the size and charge of the metal doping atoms on the reactivity and stability of Pt-doped graphene in the oxygen reduction reaction using density functional theory calculations?

asked Feb 19 in Computational Chemistry

1 answer 84 views

What is the coordination number of the europium ion in the complex [Eu(H2O)9]3+ ? How many unpaired electrons are present in the europium ion in this complex and what is its magnetic moment?

answered Feb 19 in Coordination Chemistry

1 answer 82 views

What is the carbon footprint of a typical household and how can it be reduced through the adoption of environmentally-friendly practices?

asked Feb 18 in Environmental Chemistry

1 answer 100 views

How does the acidity level of acid mine drainage affect the solubility and toxicity of heavy metals present in contaminated water sources, and what are the best treatment methods to mitigate their impact on the environment?

asked Feb 17 in Environmental Chemistry

1 answer 20 views

How do the properties of nanoparticles differ from those of bulk materials, and what factors contribute to these differences?

answered Feb 13 in Physical Chemistry

1 answer 145 views

What is the role of lipids in the regulation of insulin secretion and how does this relate to the development of type 2 diabetes?

asked Feb 13 in BioChemistry

1 answer 165 views

What is the effect of incorporating carbon nanotubes into a polymer matrix on the mechanical properties of the resulting composite material, and how does this make it suitable for use in aerospace applications?

answered Feb 13 in Polymer Chemistry

1 answer 152 views

What is the effect of doubling the concentration of reactant A on the initial rate of a second-order reaction having a rate constant of 0.002 M^-1s^-1 at a fixed concentration of reactant B?

asked Feb 13 in Chemical kinetics

1 answer 131 views

How can the synthesis and characterization of new materials improve the efficiency and stability of fuel cells?

answered Feb 11 in Materials Chemistry

1 answer 133 views

How can the production process of lubricants be optimized in order to reduce the overall cost and increase the efficiency of the system, while maintaining the desired quality and performance of the product?

asked Feb 10 in Chemical engineering

1 answer 118 views

How can the production process for fragrances be optimized to improve efficiency and reduce the potential for environmental harm? Specifically, what modifications can be made to the reaction conditions or equipment used in fragrance production to maximize yield and reduce waste?

answered Feb 10 in Chemical engineering

1 answer 97 views

How can the integration of technology in chemistry education be improved to enhance student understanding and performance in the subject? Specifically, what strategies can be implemented to overcome the barriers that prevent successful integration and adoption of technology in the chemistry classroom?

answered Feb 7 in Chemical education

1 answer 70 views

How can the conservation of energy be maximized in the production of lubricants through the designing of a system that minimizes heat loss during the process?

asked Feb 6 in Chemical engineering

1 answer 84 views

How can knowledge of pharmacogenetics be used to optimize drug therapy for individual patients in the treatment of cancer? Specifically, investigate the pharmacogenetics of common chemotherapy drugs and the genetic variations that can affect drug response and toxicity in cancer patients.

asked Feb 6 in Medicinal Chemistry

1 answer 97 views

How can first principles calculations be used to predict the electronic and magnetic properties of topological materials and provide insights into their potential applications in spintronics and quantum computing?

asked Feb 5 in Quantum Chemistry

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