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What is the balanced chemical equation for the preparation of 2,4-dichloronitrobenzene from nitrobenzene and chlorine gas, and what is the theoretical yield of the reaction if 10 g of nitrobenzene is reacted with excess chlorine gas?
asked
Feb 22
in
Chemical synthesis
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votes
1
answer
36
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How do the photochemical properties of enantiomers differ and what are the molecular mechanisms behind these differences?
asked
Feb 22
in
PhotoChemistry
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1
answer
32
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What is the hybridization of oxygen in the molecule H2O?
asked
Feb 20
in
Chemical bonding
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1
answer
28
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What is the effect of different concentrations of inorganic salts on the electric conductivity of their solutions?
asked
Feb 19
in
Inorganic Chemistry
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1
answer
29
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How does the cooling rate affect the morphology and crystal structure of a polymer during crystallization?
asked
Feb 19
in
Polymer Chemistry
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33
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How does the concentration of sulfur dioxide (SO2) and nitrogen oxides (NOx) in the atmosphere impact the pH level of rainwater in specific regions, and what are the environmental consequences of fluctuating pH levels?
asked
Feb 19
in
Environmental Chemistry
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37
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How does the concentration of greenhouse gases in the atmosphere affect global warming? Provide specific examples of greenhouse gases and their contributions to the greenhouse effect.
asked
Feb 19
in
Environmental Chemistry
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votes
1
answer
32
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How does the chemical composition of a photochromic material affect its photochromic properties?
asked
Feb 18
in
PhotoChemistry
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votes
1
answer
54
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What are the key chemical contaminants present in landfill leachate, and how do they impact the quality of groundwater in the surrounding areas?
asked
Feb 13
in
Environmental Chemistry
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votes
1
answer
35
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How can chemistry students in schools with limited availability of chemistry-related extracurricular activities find alternative opportunities to enhance their understanding and engagement with the subject?
asked
Feb 5
in
Chemical education
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1
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42
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How can chemistry students in limited-resource settings access essential chemistry textbooks and course materials to attain a high level of understanding and competence in the subject?
asked
Feb 5
in
Chemical education
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1
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83
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Given the reaction between sulfuric acid and sodium hydroxide, predict the chemical equation for the products formed and balance the reaction. Calculate the amount of sulfuric acid needed to neutralize 20 grams of sodium hydroxide.
asked
Feb 4
in
Inorganic Chemistry
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votes
1
answer
63
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Design a lubricant production system that can produce 1000 liters of lubricant per hour for use in heavy machinery. The system should be cost-effective, environmentally friendly, and able to meet industry standards for quality and performance. Include a detailed process flow diagram and a list of the necessary raw materials, equipment, and safety precautions for the production process. Additionally, calculate the total production cost per liter of lubricant and propose strategies for reducing production costs without compromising product quality.
asked
Feb 4
in
Chemical engineering
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1
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100
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How do changes in the electronic structure of reactants affect the rate and mechanism of electron transfer processes during redox reactions?
asked
Jan 31
in
Quantum Chemistry
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1
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94
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What is the reaction mechanism and rate determining step of the formation of a C-C bond between two ethene (C2H4) molecules catalyzed by a nickel-based catalyst? Use quantum chemical calculations to determine the activation energy, transition state geometry, and reaction energetics.
asked
Jan 31
in
Computational Chemistry
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1
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101
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What is the bond angle and shape of the water molecule according to the principles of quantum mechanics and molecular structure?
asked
Jan 30
in
Physical Chemistry
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1
answer
109
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What is the phase diagram of water and how does it relate to various states of water, including liquid, solid, and gas?
asked
Jan 30
in
Physical Chemistry
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1
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66
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How can Raman spectroscopy be used to identify the presence of a particular compound in a given sample of unknown material, and what are the steps involved in performing such an analysis?
asked
Jan 29
in
Analytical Chemistry
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1
answer
39
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When do researchers use the inductive approach in psychology research?
asked
Jan 20
in
Psychology
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1
answer
46
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Where might the validly of a theory be limited in organisational psychology?
asked
Jan 16
in
Psychology
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