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Answers by TVMBeulah703
0
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30
views
How does the concentration of reactants affect the reaction rate of the reaction between sodium thiosulphate and hydrochloric acid?
answered
Feb 24
in
Chemical kinetics
0
votes
60
views
How do the properties of the polymer coating, such as adhesion, hardness, and scratch resistance, affect its performance in protecting surfaces from environmental factors like UV radiation, water exposure, and corrosive materials?
answered
Feb 22
in
Polymer Chemistry
0
votes
29
views
How does the length and conjugation of a polymer chain affect its electronic and optical properties?
answered
Feb 20
in
Quantum Chemistry
0
votes
27
views
What is the equilibrium constant expression for the ionization of acetic acid (CH3COOH) in water, and what is the value of the equilibrium constant at 25°C?
answered
Feb 20
in
Chemical equilibrium
0
votes
32
views
What is the impact of different reactant orientations on the reaction rate between X and Y molecules in a gas-phase reaction under controlled temperature and pressure conditions?
answered
Feb 20
in
Chemical kinetics
0
votes
26
views
What is the efficiency of activated carbon in removing a specific pollutant from water under varying conditions such as temperature, pH, and contact time?
answered
Feb 20
in
Surface Chemistry
0
votes
15
views
How does the compatibility of two polymers affect the mechanical properties of their blend?
answered
Feb 18
in
Polymer Chemistry
0
votes
29
views
How does the addition of electron-donating or electron-withdrawing substituents affect the electronic and optical properties of conjugated polymers, and how can these changes be accurately calculated using quantum chemistry methods?
answered
Feb 17
in
Quantum Chemistry
0
votes
38
views
How does the surface modification of polymers affect their hydrophobicity and adhesion properties?
answered
Feb 17
in
Surface Chemistry
0
votes
28
views
How can we design a treatment system that efficiently removes heavy metals from industrial wastewater, considering factors like cost-effectiveness, environmental impact, and regulatory compliance?
answered
Feb 12
in
Chemical engineering
0
votes
100
views
How can the synthesis and characterization of new materials be optimized to improve the efficiency of solar cells?
answered
Feb 11
in
Materials Chemistry
0
votes
52
views
How can school administrators encourage the development of more chemistry-related extracurricular activities to provide students with better opportunities to enhance their chemistry skills and knowledge?
answered
Feb 5
in
Chemical education
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votes
42
views
How can inadequate training for chemistry teachers affect the learning outcomes of students in chemistry classes?
answered
Feb 5
in
Chemical education
0
votes
81
views
Calculate the standard enthalpy change for the transition of liquid water at 100°C to steam at the same temperature, given that the enthalpy of vaporization of water is 40.7 kJ mol-1.
answered
Feb 3
in
Chemical thermodynamics
0
votes
94
views
What are the functional groups present in an unknown organic compound that has an IR spectrum showing a strong absorption band at 1730 cm^-1 and weak bands at 2960 cm^-1 and 3300 cm^-1? Identify the possible functional groups and explain the reasoning behind your identification.
answered
Jan 30
in
Analytical Chemistry
0
votes
65
views
Calculate the heat of mixing when 100 mL of 1.0 M HCl is mixed with 100 mL of 1.0 M NaOH at 25°C. The specific heat of the resulting solution is 4.18 J/g°C and the final temperature of the solution is 30°C. Assume the heat capacities of HCl, NaOH, and water are negligible.
answered
Jan 23
in
ThermoChemistry
0
votes
58
views
Calculate the formal charge of the sulfur atom in the sulfite ion (SO3) using the formula for formal charge calculation.
answered
Jan 23
in
Inorganic Chemistry
0
votes
55
views
Where is the emphasis in existential psychology?
answered
Jan 17
in
Psychology
0
votes
69
views
When evaluating a theory of memory, what is the difference between short-term and long-term memory?
answered
Jan 16
in
Psychology
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votes
47
views
How does the cognitive approach evaluate animal psychology?
answered
Jan 16
in
Psychology
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