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0
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26
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What is the mechanism behind the photochemical degradation of the pesticide chlorpyrifos in water solution? How does the process change with different wavelengths of light?
answered
3 days
ago
in
Physical Chemistry
0
votes
18
views
What is the most reliable and efficient method to synthesize and characterize the metal coordination compounds of a specific ligand using various spectroscopic techniques and analytical methods?
answered
4 days
ago
in
Coordination Chemistry
0
votes
26
views
What is the molecular shape of the methane molecule (CH4) according to the valence shell electron pair repulsion (VSEPR) theory, and what is the explanation for it from the quantum mechanics point of view?
answered
4 days
ago
in
Physical Chemistry
0
votes
28
views
What is the balanced chemical equation for the double replacement reaction between sodium chloride and silver nitrate, and what are the spectator ions in the reaction?
answered
Feb 17
in
Chemical reactions
0
votes
45
views
What are the most effective photochemical degradation methods to remove pollutants, such as pesticides and industrial chemicals, from water and air in different environmental conditions?
answered
Feb 14
in
PhotoChemistry
0
votes
34
views
How can we design a sustainable and efficient system for the recovery of valuable metals such as gold, silver and copper from electronic waste using chemical engineering principles and techniques?
answered
Feb 12
in
Chemical engineering
0
votes
33
views
How can the pharmacology of natural products be investigated for their potential medicinal use? Specifically, what analytical techniques can be employed to identify the active compounds in natural products, determine their mechanism of action, and evaluate their efficacy and safety?
answered
Feb 10
in
Medicinal Chemistry
0
votes
33
views
How can the efficiency of polymer-based photovoltaic materials be improved through the modification of their chemical structure?
answered
Feb 7
in
Polymer Chemistry
0
votes
34
views
How can computational methods be used to predict the catalytic activity and selectivity of a particular catalyst for a given chemical reaction in quantum chemistry?
answered
Feb 5
in
Quantum Chemistry
0
votes
59
views
Calculate the total heat change when 100 ml of 0.5 M HCl is mixed with 100 ml of 0.5 M NaOH at 25°C. Assume the heat capacity of the solution is 4.18 J/(g°C) and the density of the solution is 1 g/mL. The enthalpy of neutralization of HCl and NaOH is -57.3 kJ/mol.
answered
Feb 3
in
ThermoChemistry
0
votes
90
views
How does the concentration and pH level of acid rain affect the growth and survival of aquatic plants?
answered
Jan 30
in
Environmental Chemistry
0
votes
9
views
What are some significant milestones in the history of chemistry that have shaped the modern field of chemistry, and how have they impacted our understanding of chemical phenomena?
answered
Jan 30
in
Chemical education
0
votes
57
views
How can the concentration of lead in a water sample be determined using atomic absorption spectroscopy and what factors may affect the accuracy of the measurement?
answered
Jan 29
in
Analytical Chemistry
0
votes
10
views
A student wants to calculate the rate of an electrochemical reaction. They know that the concentration of the anodic reactant is 0.01 M and that the cathodic reactant is at a concentration of 0.02 M. The student also knows that the cell potential is 1.23 V, and that the Faraday's constant is 96485 C/mol. The reaction is:Fe(s) + Cu2+(aq) → Fe2+(aq) + Cu(s)What is the rate of the reaction in mol/s at standard conditions (25°C and 1 atm)?
answered
Jan 22
in
ElectroChemistry
0
votes
52
views
Identify the number of chiral centers present in (2R,3S)-butane-1,4-diol and draw all possible stereoisomers for the compound.
answered
Jan 21
in
Organic Chemistry
0
votes
37
views
When working with communities, why might community psychologists use a strengths-based approach?
answered
Jan 20
in
Psychology
0
votes
41
views
What is the role of the insula in addiction?
answered
Jan 20
in
Psychology
0
votes
53
views
According to Lev Vygotsky's sociocultural theory, how is learning facilitated?
answered
Jan 20
in
Psychology
0
votes
53
views
According to attachment theory, how can childhood experiences impact adult relationships?
answered
Jan 17
in
Psychology
0
votes
40
views
What is an explanation for the placebo analgesia phenomenon?
answered
Jan 16
in
Psychology
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