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Answers by EloisaPtm353
0
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26
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How does the photochemical behavior differ between natural and synthetic dyes in terms of their ability to withstand UV radiation?
answered
4 days
ago
in
PhotoChemistry
0
votes
28
views
What is the optimal temperature and reaction time for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine?
answered
4 days
ago
in
Chemical synthesis
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votes
20
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What is the most stable geometric structure and electronic configuration of a Fe(CO)5 complex molecule as predicted by ab initio calculations?
answered
4 days
ago
in
Computational Chemistry
0
votes
6
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What is the most probable mechanism of gas-phase reaction between hydrogen and oxygen using Monte Carlo simulation?
answered
4 days
ago
in
Computational Chemistry
0
votes
29
views
What is the enthalpy change for the combustion reaction of methane gas (CH4) when 2.50 moles of methane are burned in excess oxygen gas under standard conditions?
answered
Feb 17
in
ThermoChemistry
0
votes
23
views
How does increasing the surface area of a reactant affect the rate of a chemical reaction?
answered
Feb 13
in
Chemical kinetics
0
votes
39
views
How can instructors in a chemistry classroom provide more effective support for students with learning disabilities to achieve their academic goals in the subject?
answered
Feb 5
in
Chemical education
0
votes
75
views
Calculate the standard enthalpy change for the fusion reaction of 50g of ice at 0°C with 450g of liquid water at 25°C. The molar enthalpy of fusion of ice is 6.01 kJ/mol and the specific heat capacity of water is 4.18 J/g·°C. Assume there are no heat losses to the surroundings.
answered
Feb 3
in
Chemical thermodynamics
0
votes
72
views
How can we use Raman spectroscopy to identify the presence of specific compounds in a sample mixture of benzene and toluene in varying concentrations?
answered
Jan 30
in
Analytical Chemistry
0
votes
61
views
Calculate the enthalpy of solution of sodium chloride (NaCl) when 10 grams of NaCl is dissolved in 100 mL of water assuming that the specific heat capacity of the solution is equal to the specific heat capacity of water (4.18 J/g°C) and the temperature change is negligible.
answered
Jan 23
in
ThermoChemistry
0
votes
62
views
Calculate the dipole moment of carbon dioxide molecule and determine its polarity.
answered
Jan 23
in
Chemical bonding
0
votes
62
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Calculate the bond energy for the O-H bond in a water molecule (H2O), given that the enthalpy change for the combustion of 1 mole of water is -286 kJ/mol and the O=O bond energy is 498 kJ/mol.
answered
Jan 23
in
Chemical reactions
0
votes
69
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A student conducted an electrochemical reaction using a copper electrode to reduce a solution containing Ag+ ions. The standard reduction potential for Ag+ is 0.80 V and the standard reduction potential for Cu2+ is 0.34 V. The student measured the cell potential to be 0.62 V. Calculate the overpotential of the reaction and determine if the reduction of Ag+ occurs spontaneously.
answered
Jan 22
in
ElectroChemistry
0
votes
12
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Please compare and contrast the ethics of using placebo treatments in research.
answered
Jan 20
in
Psychology
0
votes
56
views
Why is the optimal distinctiveness theory important?
answered
Jan 20
in
Psychology
0
votes
11
views
When considering the role of a community psychologist, what is the term for working alongside community members to build capacity?
answered
Jan 17
in
Psychology
0
votes
51
views
What is the main criticism of Bowlby's attachment theory?
answered
Jan 16
in
Psychology
0
votes
64
views
How does cognitive dissonance theory explain the relationship between attitudes and behaviour?
answered
Jan 15
in
Psychology
0
votes
45
views
Who developed the theory of feature detection?
answered
Jan 15
in
Psychology
0
votes
38
views
What is the relationship between trauma and substance abuse?
answered
Jan 14
in
Psychology
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