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User JeroldStonem
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Answers by JeroldStonem
0
votes
22
views
What is the effect of pH on the reaction rate between hydrochloric acid and magnesium ribbon?
answered
3 days
ago
in
Chemical kinetics
0
votes
24
views
How does the rate of photochemical reactions vary with changes in light intensity in the presence of a particular type of photosensitizer?
answered
3 days
ago
in
PhotoChemistry
0
votes
20
views
What is the effect of varying pH levels on the rate of photochemical reactions, specifically in the degradation of a particular organic dye under UV light, and how does this impact the overall efficiency of the process?
answered
6 days
ago
in
PhotoChemistry
0
votes
24
views
How does the concentration of nitrogen and phosphorus in agricultural runoff affect the growth of harmful algal blooms in nearby bodies of water, and what chemical treatments can be used to remediate the issue?
answered
Feb 19
in
Environmental Chemistry
0
votes
28
views
What is the balanced chemical equation for the synthesis reaction between sodium and chlorine to form sodium chloride?
answered
Feb 17
in
Chemical reactions
0
votes
44
views
What is the effect of changing the magnetic field strength on the chemical shift values in NMR spectroscopy?
answered
Feb 13
in
Physical Chemistry
0
votes
10
views
How can we design a system for the production of vanilla flavor from vanillin, taking into account cost efficiency and environmental sustainability?
answered
Feb 12
in
Chemical engineering
0
votes
42
views
What is the effect of combining ibuprofen and aspirin on the blood-thinning properties of aspirin?
answered
Feb 12
in
Medicinal Chemistry
0
votes
42
views
How can the conductivity of polymer electrolytes for batteries be improved by modifying the chemical structure of the polymer?
answered
Feb 6
in
Polymer Chemistry
0
votes
34
views
How can one utilize the principles of quantum chemistry to accurately predict the electronic and magnetic properties of metal-organic frameworks?
answered
Feb 5
in
Quantum Chemistry
0
votes
57
views
Determine the standard enthalpy change for the vaporization of 50g of ethyl alcohol (C2H5OH) at its normal boiling point of 78.4°C. Given that the molar heat of vaporization of ethyl alcohol is 38.56 kJ/mol and the molar mass of ethyl alcohol is 46.07 g/mol.
answered
Feb 4
in
Chemical thermodynamics
0
votes
71
views
How does changing the reaction stoichiometry affect the rate of a chemical reaction between hydrogen peroxide and potassium iodide?
answered
Feb 3
in
Chemical kinetics
0
votes
76
views
How does changing the concentration of a photosensitizer affect the rate of a photochemical reaction?
answered
Jan 31
in
PhotoChemistry
0
votes
71
views
What is the concentration of a solution containing CuSO4 if its absorbance is 0.472 at a wavelength of 620 nm? The molar absorptivity of CuSO4 at this wavelength is 2.34 x 10^4. The solution has a path length of 1 cm.
answered
Jan 30
in
Analytical Chemistry
0
votes
59
views
How can the concentration of chloride ions be quantified in a given water sample using potentiometry?
answered
Jan 29
in
Analytical Chemistry
0
votes
64
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Calculate the enthalpy change for the following polymerization reaction: 2 C2H4 (g) → C4H8 (g) Given the following bond enthalpies: C-H = 413 kJ/mol, C-C = 348 kJ/mol, C=C = 611 kJ/mol Assume all reactants and products are gases at 298 K and 1 atm.
answered
Jan 23
in
ThermoChemistry
0
votes
61
views
A student wants to determine the enthalpy of combustion of octane. They measured the temperature change of 200 mL of water in a calorimeter when 1.50 grams of octane was burned completely. The initial temperature of the water was 25.0 °C and it reached a maximum of 45.0 °C. What is the enthalpy of combustion of octane?
answered
Jan 22
in
ThermoChemistry
0
votes
70
views
According to the endowment effect, how do people value items that they own compared to similar items they do not own?
answered
Jan 20
in
Psychology
0
votes
60
views
When working with communities, what is the term for being sensitive to and accepting of diversity?
answered
Jan 17
in
Psychology
0
votes
32
views
What are the similarities between Bandura's social learning theory and Skinner's behaviourism?
answered
Jan 17
in
Psychology
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