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Answers by JEAMolly3713
0
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30
views
How does the intensity of light affect the rate of reaction between potassium permanganate and oxalic acid in acidic medium?
answered
Feb 22
in
Chemical kinetics
0
votes
31
views
What is the optimum concentration of nitric acid required for preparing 2,4-dinitrobenzoic acid from benzoic acid? How does this concentration affect the overall yield of the synthesis reaction?
answered
Feb 22
in
Chemical synthesis
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votes
27
views
What is the effect of different wavelengths of light on the reaction rate of a chemical reaction, specifically the reaction between iodine and acetone?
answered
Feb 19
in
Chemical kinetics
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votes
36
views
How does the absorption of light by a molecule or material affect its chemical and physical properties?
answered
Feb 17
in
Quantum Chemistry
0
votes
40
views
What is the effect of different types of polymer-based coatings and paints on the durability and aging resistance of metallic surfaces?
answered
Feb 14
in
Polymer Chemistry
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votes
39
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How can the yield and purity of the pharmaceutical drug be optimized in the process of production, while minimizing the use of hazardous chemicals and waste generation in the process, using principles of green chemistry?
answered
Feb 14
in
Chemical engineering
0
votes
84
views
How do inadequate emphasis on chemical reactions and equations impact a student's understanding of stoichiometry and chemical bonding? Provide examples to support your argument.
answered
Feb 13
in
Chemical education
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votes
57
views
What is the hybridization of the central atom in the following inorganic compound: NH4+ ?
answered
Feb 13
in
Inorganic Chemistry
0
votes
57
views
How can we improve the yield and purity of a pharmaceutical drug during the production process using chemical engineering principles and techniques?
answered
Feb 13
in
Chemical engineering
0
votes
72
views
Determine the number of electrons transferred in the following electrochemical reaction: Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s) Show the calculation steps and write the balanced half-reactions with the number of electrons transferred.
answered
Feb 4
in
ElectroChemistry
0
votes
139
views
Design a system for the production of lubricants in a chemical plant that can produce at least 1000 liters of lubricant per day. The system should also ensure the quality and consistency of the final product and take into account the use of sustainable and environmentally friendly materials and processes.
answered
Feb 4
in
Chemical engineering
0
votes
65
views
How do chaperone proteins facilitate the correct folding of newly synthesized proteins in the cell?
answered
Feb 3
in
BioChemistry
0
votes
59
views
How can we accurately determine the amount of caffeine present in a sample of coffee using liquid chromatography?
answered
Jan 29
in
Analytical Chemistry
0
votes
71
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Calculate the heat of hydration of CuSO4.5H2O given that the enthalpy change for the reaction CuSO4.5H2O(s) -> CuSO4(s) + 5H2O(l) is -90.6 kJ/mol. Assume that the specific heat of the hydrated salt is 4.2 J/g*K and the density of the solution is 1.05 g/mL.
answered
Jan 23
in
ThermoChemistry
0
votes
69
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Calculate the Gibbs free energy change for the following reaction at 298 K: 2H2(g) + O2(g) → 2H2O(l) Given, ΔH = -483.6 kJ/mol and ΔS = -109.4 J/K/mol.
answered
Jan 23
in
Chemical thermodynamics
0
votes
62
views
Calculate the amount of heat required to melt 50 grams of ice at 0 C, taking the enthalpy of fusion to be 6.01 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
51
views
When did the limitations of bivarite correlation become more apparent?
answered
Jan 20
in
Psychology
0
votes
91
views
Why do some researchers suggest that exposure to violent media may contribute to aggressive behaviour?
answered
Jan 20
in
Psychology
0
votes
72
views
Why are medications commonly used in treating mental illness?
answered
Jan 20
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Psychology
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33
views
Who is more likely to support positive social change?
answered
Jan 20
in
Psychology
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