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0
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1
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22
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How does the size and shape of a nanomaterial affect its electronic and optical properties, and how can quantum chemistry calculations be used to predict and understand these properties?
asked
1 day
ago
in
Quantum Chemistry
0
votes
1
answer
18
views
How does changing the pH affect the equilibrium position of the reaction between acetic acid and sodium acetate? Provide a detailed explanation with calculations to support your answer.
asked
3 days
ago
in
Chemical equilibrium
0
votes
1
answer
20
views
How does the body synthesize non-essential amino acids and what are the key enzymes involved in the biosynthesis pathway?
asked
5 days
ago
in
BioChemistry
0
votes
1
answer
25
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What is the dipole moment of a water molecule according to ab initio calculations and how does it compare to the experimental value?
asked
6 days
ago
in
Computational Chemistry
0
votes
1
answer
20
views
How does the coordination number of a transition metal complex affect its stability, as determined by ab initio calculations, and what is the most stable geometry for complexes with different coordination numbers?
asked
6 days
ago
in
Computational Chemistry
0
votes
1
answer
6
views
How does the concentration of heavy metals in soil affect the growth of plants, and what mechanisms can be used to decrease the toxicity of these heavy metals in the environment?
asked
Feb 19
in
Environmental Chemistry
0
votes
1
answer
37
views
How does the photochemical behavior of enantiomers differ and how can this difference be utilized in various practical applications?
asked
Feb 13
in
PhotoChemistry
0
votes
1
answer
34
views
How can the efficiency of the production process of paints and coatings be improved while minimizing the negative impact on the environment?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
37
views
How can the adsorption capacity of zeolites be optimized for specific industrial applications using computational studies?
asked
Feb 6
in
Computational Chemistry
0
votes
1
answer
52
views
How can a company reduce its carbon footprint in its manufacturing processes without compromising the quality of its products?
asked
Feb 4
in
Environmental Chemistry
0
votes
1
answer
34
views
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
0
votes
1
answer
86
views
Can you propose a suitable reaction mechanism for the preparation of 2,4-dinitrophenol from phenol and nitric acid, and explain the key reaction steps and intermediates involved?
asked
Jan 31
in
Chemical synthesis
0
votes
1
answer
74
views
What strategies can a student use to better understand complex chemical concepts, such as chemical bonding, equilibrium, or thermodynamics?
asked
Jan 30
in
Chemical education
0
votes
1
answer
76
views
How to quantify the concentration of copper (II) ions in a sample of water using colorimetry?
asked
Jan 30
in
Analytical Chemistry
+1
vote
1
answer
44
views
How can X-ray fluorescence spectroscopy be utilized to determine the presence of a specific metal in a sample and what are the possible sources of error in the analysis?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
76
views
How can we quantify the amount of iron present in a given water sample using colorimetry?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
51
views
How can capillary electrophoresis (CE) be used to determine the quantity of specific ions or molecules in a sample, and what are the factors that could affect the accuracy and reproducibility of the CE analysis results?
asked
Jan 29
in
Analytical Chemistry
0
votes
1
answer
60
views
Calculate the heat of neutralization when 50 mL of 1 M HCl(aq) is mixed with 50 mL of 1 M NaOH(aq) at a constant temperature of 25 °C. The specific heat capacity of the solution is 4.18 J/g·°C, and the density of the solution is 1.00 g/mL.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
63
views
Calculate the enthalpy of desorption of carbon dioxide (CO2) from a surface if the surface coverage is 0.025 mol/m² and the temperature is 298 K. The enthalpy of adsorption for CO2 on the surface is -35.8 kJ/mol. The equilibrium constant (K) for the reaction is 2.99 x 10⁶ at 298 K.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
50
views
A chemistry student has two containers, one with 25 grams of hydrogen gas and the other with 35 grams of oxygen gas. What mass of water can be produced when these two gases undergo a reaction and which gas is the limiting reactant?
asked
Jan 22
in
Chemical reactions
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