Answers by LewisR691771

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What is the optimal conditions for the adsorption of methylene blue dye on activated carbon with a specific surface area of 1000 m2/g and how does the pH of the solution affect the adsorption efficiency?

answered 5 days ago in Surface Chemistry

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27 views

What is the effect of concentration on the reaction rate of catalytic hydrogenation of butene?

answered Feb 19 in Physical Chemistry

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31 views

What is the chemical reaction responsible for the formation of acid rain and how does it affect soil pH and plant growth in affected areas?

answered Feb 18 in Environmental Chemistry

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How does the addition of catalyst X affect the rate of reaction Y at a temperature of Z degrees Celsius?

answered Feb 17 in Chemical kinetics

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What is the effect of strain on the electronic and optical properties of graphene? What are the changes in the energy band structure and excitonic properties of strained graphene compared to the unstrained graphene?

answered Feb 14 in Quantum Chemistry

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How do persistent organic pollutants (POPs) enter the food chain, and what are the potential health and environmental impacts of bioaccumulation of POPs in different trophic levels?

answered Feb 14 in Environmental Chemistry

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How can the crystal structure of an inorganic solid be accurately predicted using computational modeling techniques and experimental data?

answered Feb 6 in Inorganic Chemistry

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Here's a precise problem for the student to solve:What is the oxidation state of carbon in ethanol (C2H5OH)? Show the electron transfer steps involved in the oxidation of ethanol to acetic acid (CH3COOH) using balanced half-reactions.

answered Feb 4 in Organic Chemistry

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Determine the equilibrium constant for the following redox reaction taking place at 25°C: Fe2+(aq) + H2O2(aq) + 2H+(aq) → Fe3+(aq) + 2H2O(l) Given the standard reduction potentials below: Fe3+/Fe2+ = +0.771 V H2O2(aq)/H2O(l) = +1.78 V

answered Feb 4 in Chemical equilibrium

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Describe the step-by-step procedure for synthesizing polyvinylpyrrolidone from vinylpyrrolidone monomer, including the necessary reagents, temperatures, and reaction conditions.

answered Feb 3 in Chemical synthesis

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Calculate the standard free energy change for the following redox reaction: Balanced Chemical Equation: 2Fe3+(aq) +3H2O2(aq) → 2Fe2+(aq) + 3O2(g) + 6H+(aq)Given data: Standard reduction potential of Fe3+/Fe2+ = +0.77 V Standard reduction potential of H2O2/O2 = +0.70 V

answered Feb 3 in Chemical thermodynamics

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How do changes in concentrations of enzymes and substrates affect the rate of a metabolic pathway? Provide a detailed explanation using the glycolysis pathway as an example.

answered Jan 31 in BioChemistry

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56 views

Calculate the equilibrium constant for the following electrochemical reaction at a temperature of 25°C:$$\ce{Co^{2+} + 2e^- <=> Co(s)}$$Given that the standard reduction potential for the half-reaction is $-0.28\,\text{V}$ and the concentration of $\ce{Co^{2+}}$ is $0.1\,\text{M}$.

answered Jan 23 in ElectroChemistry

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A chemistry student wants to know the equilibrium constant for the reaction between nitrogen and hydrogen to produce ammonia. If the initial concentration of nitrogen is 0.2 moles/L, the initial concentration of hydrogen is 0.1 moles/L, and the equilibrium concentration of ammonia is 0.3 moles/L, what is the equilibrium constant for this reaction?

answered Jan 22 in Chemical reactions

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45 views

What is the nature of sleep?

answered Jan 20 in Psychology

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How does cocaine affect the brain?

answered Jan 17 in Psychology

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What are factors affecting effect size in research?

answered Jan 16 in Psychology

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37 views

Who proposed the 'triarchic theory of intelligence'?

answered Jan 15 in Psychology

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33 views

Where does all igneous rock come from?

answered Jan 8 in Science

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35 views

Where can you find sodium acetate?

answered Jan 8 in Science

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