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0
votes
1
answer
17
views
How does the rate of the reaction between magnesium and hydrochloric acid affect the yield of hydrogen gas produced?
asked
3 days
ago
in
Chemical kinetics
0
votes
1
answer
23
views
How do the photochemical properties of photosensitive materials affect the final image produced in photography?
asked
3 days
ago
in
PhotoChemistry
0
votes
1
answer
25
views
How does the concentration and pore size of activated carbon affect its efficiency in adsorbing pollutants from contaminated water?
asked
5 days
ago
in
Surface Chemistry
0
votes
1
answer
18
views
What is the effect of molecular weight on the melting point of polyethylene?
asked
5 days
ago
in
Physical Chemistry
0
votes
1
answer
31
views
What is the effect of changing the concentration of a photosensitizer on the rate of a photochemical reaction?
asked
5 days
ago
in
PhotoChemistry
0
votes
1
answer
21
views
What is the coordination geometry of the complex [Cu(NH3)4]SO4? Use UV-Vis spectroscopy to determine the nature of the ligand-metal coordination bond and its bonding energy.
asked
6 days
ago
in
Coordination Chemistry
0
votes
1
answer
37
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What is the boiling point of magnesium oxide (MgO) at a pressure of 1 atm? Show the calculation steps and provide the answer in degrees Celsius.
asked
Feb 17
in
Inorganic Chemistry
0
votes
1
answer
34
views
What is the surface tension of a liquid and how is it measured? Provide an experimental method to determine the surface tension of a given liquid and discuss the factors that affect surface tension.
asked
Feb 17
in
Surface Chemistry
0
votes
1
answer
29
views
What are the differences in the photochemical properties of silver halide films and digital sensors, and how do these properties affect the quality and characteristics of the final photographic image produced?
asked
Feb 14
in
PhotoChemistry
0
votes
1
answer
37
views
What is the effect of increasing the temperature on the rate of the reaction between hydrochloric acid and magnesium ribbon, and how can this effect be explained using the Collision Theory?
asked
Feb 13
in
Chemical kinetics
0
votes
1
answer
31
views
Using coordination chemistry, explain the color changes observed by adding aqueous ammonia to copper(II) sulfate solution.
asked
Feb 13
in
Coordination Chemistry
0
votes
1
answer
36
views
How does the coordination chemistry of metalloenzymes contribute to their catalytic activity and specificity? Provide a detailed explanation with examples of at least two metalloenzymes.
asked
Feb 12
in
Coordination Chemistry
0
votes
1
answer
10
views
How can the mass transfer process be optimized in the production of a pharmaceutical drug using a specific chemical reactor design?
asked
Feb 7
in
Chemical engineering
0
votes
1
answer
30
views
How can chemistry educators provide more emphasis on environmental chemistry in the curriculum to ensure students have a better understanding of its crucial role in preserving the planet's ecosystem?
asked
Feb 4
in
Chemical education
0
votes
1
answer
34
views
Design a heat exchanger for a chemical process that requires heating of 50 kg/hr of water from 25°C to 80°C using steam as the heating medium. The available steam is at a pressure of 1.5 MPa and a temperature of 300°C. The overall heat transfer coefficient between the water and the steam is 600 W/m2K. The heat exchanger should be designed to accommodate a temperature drop of 5°C for both the water and the steam. Determine the required surface area of the heat exchanger and the mass flow rate of steam required to meet the process requirements.
asked
Feb 4
in
Chemical engineering
0
votes
1
answer
47
views
How does the chemical structure of aspirin contribute to its pharmacodynamics in the body?
asked
Jan 31
in
Medicinal Chemistry
0
votes
1
answer
67
views
What are the structural differences between aldehydes and ketones, and how do these differences affect their reactivity towards nucleophiles such as water and ammonia?
asked
Jan 31
in
Organic Chemistry
0
votes
1
answer
56
views
Calculate the bond length between two oxygen atoms in an O2 molecule, given that the O-O bond energy is 498 kJ/mol and the reduced mass of the system is 15.9994 g/mol.
asked
Jan 23
in
Chemical bonding
0
votes
1
answer
60
views
Calculate the amount of heat required to melt 20 grams of ice at 0°C and convert it to liquid water at 0°C. The enthalpy of fusion of water is 6.01 kJ/mol. Show all the steps of your calculations.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
112
views
A student needs to calculate the current density (in Amperes per square meter) of a copper electrode (Area = 10 cm²) in an electrochemical cell where the half-cell reaction is Cu²⁺ + 2e⁻ → Cu and the cell voltage is 1.1 V. The concentration of Cu²⁺ in the cell is 0.1 M.
asked
Jan 22
in
ElectroChemistry
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