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User EttaKee54894
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Answers by EttaKee54894
0
votes
15
views
How does the reaction mechanism affect the reaction rate of the decomposition of hydrogen peroxide catalyzed by potassium iodide?
answered
3 days
ago
in
Chemical kinetics
0
votes
25
views
How does the rate of electron transfer in a redox reaction change with varying concentrations of reactants and catalysts, and what factors influence the energy barriers for the transfer process?
answered
3 days
ago
in
Quantum Chemistry
0
votes
23
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How does the presence of a catalyst affect the reaction rate of a chemical reaction between hydrogen peroxide and potassium iodide? And how does the rate of the reaction change when different amounts of catalyst are used?
answered
3 days
ago
in
Chemical kinetics
0
votes
24
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What is the optimal process for synthesizing silver nanoparticles of a specific size and shape using a green chemistry approach?
answered
3 days
ago
in
Materials Chemistry
0
votes
26
views
What is the molecular geometry of a water molecule (H2O) and what is the bond angle between the two hydrogen atoms and the oxygen atom?
answered
4 days
ago
in
Chemical bonding
0
votes
25
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What is the formal charge of the nitrogen atom in the molecule NH4+?
answered
5 days
ago
in
Chemical bonding
0
votes
16
views
What is the mechanism of Electrophilic addition reaction of water with propene, and what are the products formed?
answered
5 days
ago
in
Organic Chemistry
0
votes
17
views
What is the critical micelle concentration of sodium dodecyl sulfate in water at 25°C?
answered
6 days
ago
in
Surface Chemistry
0
votes
26
views
How do Persistent organic pollutants (POPs) affect the soil quality and plant growth in a polluted environment?
answered
Feb 14
in
Environmental Chemistry
0
votes
35
views
What is the dipole moment of ethylene (C2H4) as predicted by ab initio calculations, and how does it compare to the experimentally measured value?
answered
Feb 13
in
Computational Chemistry
0
votes
48
views
How does the computational simulation of enzyme catalysis help in predicting the reaction mechanisms involved and identifying the key intermediates?
answered
Feb 12
in
Computational Chemistry
0
votes
69
views
How can the size and shape of metal nanoparticles be controlled precisely for effective use in applications such as catalysis and biomedical imaging?
answered
Feb 10
in
Materials Chemistry
0
votes
32
views
How can the efficiency of polymer-based photovoltaic materials be improved through the manipulation of the polymer's chemical structure?
answered
Feb 7
in
Polymer Chemistry
0
votes
35
views
How can the calculation of magnetic properties using quantum chemistry theories help in understanding the behavior of molecules and materials in magnetic fields?
answered
Feb 6
in
Quantum Chemistry
0
votes
44
views
Design a chemical reactor system to produce 100 litres of ammonia per hour from hydrogen and nitrogen gases. The reaction occurs at 450°C and 200 atm pressure. The reactor should have a conversion rate of at least 95% and a selectivity of 100% towards ammonia production. The feed gases are available at a rate of 200 litres per minute each, and the reactor should operate continuously for 30 days. Also, ensure that the reactor design considers the safety precautions required for handling flammable gases and high-pressure materials. Provide a detailed technical report of your reactor design with an analysis of the efficiency, cost, and environmental impact.
answered
Feb 3
in
Chemical engineering
0
votes
51
views
Calculate the standard enthalpy change for the following reaction: [Fe(H2O)6]2+(aq) + SO4 2-(aq) → [Fe(H2O)5 SO4]-(aq) + H2O(l) given that the standard enthalpies of formation of [Fe(H2O)6]2+, [Fe(H2O)5SO4]-, and H2O are -360 kJ/mol, -950 kJ/mol, and -286 kJ/mol, respectively.
answered
Feb 3
in
Chemical thermodynamics
0
votes
59
views
Calculate the heat of crystallization of NaOH given that 10 grams of NaOH dissolves in 100 mL of water at 25°C and the resulting solution is cooled to 0°C. The enthalpy of solution of NaOH is -44.5 kJ/mol, and the density of the resulting solution is 1.1 g/mL.
answered
Jan 23
in
ThermoChemistry
0
votes
37
views
Who conducted the study on the sleep patterns of Fly-in-fly-out workers?
answered
Jan 17
in
Psychology
0
votes
34
views
Why is parsimony important in theory evaluation?
answered
Jan 15
in
Psychology
0
votes
40
views
Why is social support important for wellbeing?
answered
Jan 15
in
Psychology
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