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How do the properties and behaviors of colloidal particles change with variations in pH and ionic strength of the solvent, and how can we manipulate these factors to control the stability and dispersion of colloidal suspensions for various applications?
asked
Feb 22
in
Physical Chemistry
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votes
1
answer
31
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How does the presence of specific chemicals in crude oil affect their behavior and impact on the environment during an oil spill?
asked
Feb 22
in
Environmental Chemistry
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1
answer
24
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How does the presence of reaction intermediates affect the rate of a chemical reaction?
asked
Feb 22
in
Chemical kinetics
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1
answer
30
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How does the polarity of the solvent affect the rate of a photochemical reaction? Provide experimental evidence and discuss the underlying mechanism behind the observed trend.
asked
Feb 22
in
PhotoChemistry
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1
answer
25
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What is the most efficient method for developing a process for the production of a high value specialty chemical with a yield of at least 85% and a purity of 99% or greater, while minimizing waste and reducing environmental impact?
asked
Feb 21
in
Chemical engineering
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votes
1
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29
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What is the most effective method for the analysis and detection of pesticide residues in food samples and how can this information be used to minimize the impact of these residues on human health?
asked
Feb 21
in
Environmental Chemistry
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votes
1
answer
43
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What are the resonance structures of the carbonate ion (CO3²-)?
asked
Feb 18
in
Chemical bonding
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votes
1
answer
36
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What is the predicted acidity or basicity of sulfuric acid (H2SO4) based on its chemical bonding structure and the elements involved?
asked
Feb 14
in
Chemical bonding
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votes
1
answer
116
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What type of bonding exists in solid sodium chloride (NaCl)?
asked
Feb 13
in
Chemical bonding
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votes
1
answer
57
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How can the process of production of industrial gases such as nitrogen, oxygen or hydrogen be optimized for high-yield and low energy consumption?
asked
Feb 10
in
Chemical engineering
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1
answer
36
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How can the efficiency of polymer-based photovoltaic materials be improved by optimizing their molecular structure and properties?
asked
Feb 7
in
Polymer Chemistry
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1
answer
41
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How can the efficiency of a hydrogen fuel production system be optimized using chemical engineering principles?
asked
Feb 7
in
Chemical engineering
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votes
1
answer
43
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How can quantum information processing and quantum computing be utilized to solve problems in drug discovery?
asked
Feb 5
in
Quantum Chemistry
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1
answer
158
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Here's a precise problem for a chemistry student to solve:A gas, initially at a pressure of 1 atm and a temperature of 20°C, is contained in a cylinder with a volume of 5 L. If the gas is allowed to expand to a volume of 10 L at a constant temperature of 20°C, what is the final pressure of the gas? Use the ideal gas law equation to solve the problem.
asked
Feb 4
in
Physical Chemistry
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1
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64
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Calculate the standard enthalpy change for the following reaction, given the standard enthalpies of formation:2Fe (s) + 3Cl2 (g) → 2FeCl3 (s)ΔH°f(FeCl3) = -399.4 kJ/molΔH°f(Fe) = 0 kJ/molΔH°f(Cl2) = 0 kJ/mol
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
109
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How do changes in the lipid composition of a cell membrane affect its permeability to specific molecules? Provide examples of lipids that increase or decrease membrane permeability and explain why this occurs on a molecular level.
asked
Jan 31
in
BioChemistry
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votes
1
answer
120
views
What type of bond will form between a lithium atom (Li) and a fluorine atom (F)?
asked
Jan 30
in
Chemical bonding
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1
answer
30
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Please evaluate the use of animal subjects in research.
asked
Jan 20
in
Psychology
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1
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74
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What is the Fear-Arousing Communication?
asked
Jan 20
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Psychology
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1
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57
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How can operant conditioning be used in practical settings?
asked
Jan 20
in
Psychology
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