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What are the specific steps involved in the preparation of p-nitroaniline from aniline and nitric acid, and what are the optimal reaction conditions required to obtain a high yield of the desired product?
asked
Feb 22
in
Chemical synthesis
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votes
1
answer
36
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What is the maximum amount of a gas that can be adsorbed onto the surface of a solid adsorbent at a specific temperature and pressure, according to the Langmuir adsorption isotherm equation? Provide an example utilizing experimental data.
asked
Feb 20
in
Surface Chemistry
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votes
1
answer
23
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How does the coordination chemistry of metalloproteins and enzymes affect the function and activity of these molecules in biological systems?
asked
Feb 19
in
Coordination Chemistry
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1
answer
32
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What is the relationship between the conductivity of inorganic compounds and their chemical structure?
asked
Feb 19
in
Inorganic Chemistry
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1
answer
41
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What is the effect of varying the ratio of polymer A to polymer B on the compatibility of a polymer blend?
asked
Feb 18
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Polymer Chemistry
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answer
30
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How does the carbon footprint of a household vary with different daily activities, such as transportation, food choices, and energy consumption, and how can individuals reduce their carbon footprint to mitigate their impact on the environment?
asked
Feb 18
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Environmental Chemistry
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1
answer
41
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How does the application of computational methods in quantum chemistry help in predicting the catalytic activity and selectivity of transition metal complexes used in organic synthesis?
asked
Feb 17
in
Quantum Chemistry
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1
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31
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What is the effect of temperature on the adsorption of gases on solid surfaces? Provide a detailed explanation with relevant examples from literature.
asked
Feb 17
in
Surface Chemistry
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votes
1
answer
69
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How does the decreased acetyl-CoA carboxylase activity affect the biosynthesis of triglycerides, cholesterol and fatty acids in the liver cells of overweight individuals who have developed non-alcoholic fatty liver disease?
asked
Feb 14
in
BioChemistry
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votes
1
answer
62
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How can we improve the durability and scratch-resistant properties of polymer-based coatings and paints for automotive applications?
asked
Feb 13
in
Polymer Chemistry
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votes
1
answer
77
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How can the process for the production of detergents be optimized to increase the yield of the desired product while minimizing unwanted byproducts and environmental impact?
asked
Feb 10
in
Chemical engineering
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1
answer
78
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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.
asked
Feb 4
in
Organic Chemistry
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1
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141
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Here's a precise problem for a chemistry student to solve, based on Thermochemistry and the Enthalpy of Desorption Calculations:Given the following data for the adsorption of hydrogen gas on a metal surface:- Initial pressure of hydrogen gas = 1 atm- Final pressure of hydrogen gas after adsorption = 0.2 atm- Temperature = 298 K- Surface area of the metal = 5 cm^2- Enthalpy of Desorption of hydrogen gas on the metal surface = -40 kJ/molCalculate the enthalpy change (in kJ) for the adsorption of hydrogen gas on the metal surface.
asked
Feb 4
in
ThermoChemistry
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1
answer
66
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Calculate the pH of a 0.2 M solution of acetic acid (CH3COOH) if the acid dissociation constant (Ka) of acetic acid is 1.8 × 10^-5.
asked
Feb 3
in
Chemical reactions
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votes
1
answer
98
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How does the aromaticity of a compound affect its reactivity towards electrophilic substitution reactions? Provide relevant examples to support your answer.
asked
Jan 31
in
Organic Chemistry
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1
answer
96
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How can chemistry students and educators address the issue of insufficient funding for chemistry education to ensure access to quality laboratory equipment and resources, and improve overall learning outcomes?
asked
Jan 30
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Chemical education
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1
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71
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Calculate the enthalpy change for the dissolution of 10 g of sodium hydroxide in 100 g of water at a temperature of 25°C, given that the final temperature of the solution is 26.5°C and the specific heat capacity of the solution is 4.18 J g⁻¹ K⁻¹. (Assume that the heat released is absorbed by the solution and there is no heat lost to the surroundings.)
asked
Jan 23
in
ThermoChemistry
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1
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85
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Calculate the bond length between a carbon (C) and an oxygen (O) atom in carbon monoxide (CO), given that the bond energy is 1070 kJ/mol and the force constant is 1070 N/m.
asked
Jan 23
in
Chemical bonding
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1
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61
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When might a community psychology approach be more appropriate than a traditional clinical approach?
asked
Jan 20
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Psychology
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1
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73
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What is the goal of the relative deprivation theory of conflict?
asked
Jan 20
in
Psychology
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