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0
votes
1
answer
21
views
How does the reaction rate of a chemical reaction change with respect to the concentration of one reactant, while keeping the other reactants and conditions constant?
asked
1 day
ago
in
Chemical kinetics
0
votes
1
answer
20
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What is the enthalpy change (in kJ/mol) for the combustion of methane, CH4(g), given the following thermochemical equation:CH4(g) + 2 O2(g) -> CO2(g) + 2 H2O(l)ΔHrxn = -890.3 kJ/mol
asked
6 days
ago
in
ThermoChemistry
0
votes
1
answer
21
views
How does the degree of polymerization affect the physical properties of polystyrene, specifically its melting point and glass transition temperature?
asked
6 days
ago
in
Physical Chemistry
0
votes
1
answer
19
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What is the critical micelle concentration of sodium dodecyl sulfate in an aqueous solution at a temperature of 25°C?
asked
6 days
ago
in
Surface Chemistry
0
votes
1
answer
27
views
How to predict the crystal structure of inorganic solids having high symmetry and complex bonding environments?
asked
Feb 14
in
Inorganic Chemistry
0
votes
1
answer
38
views
How do metal ions coordinate with the amino acid residues in metalloenzymes and metalloproteins to carry out their biological functions and what are the factors that influence the coordination preferences of the metal ions?
asked
Feb 13
in
Coordination Chemistry
0
votes
1
answer
35
views
How can the ionic conductivity of polymer electrolytes be improved for use in high-performance batteries?
asked
Feb 7
in
Polymer Chemistry
0
votes
1
answer
12
views
How can college chemistry courses be better designed to prepare students for chemistry-related careers, such as analytical chemistry or materials science, in order to reduce the skills gap between academic training and industry expectations?
asked
Feb 6
in
Chemical education
0
votes
1
answer
9
views
Considering the Coordination chemistry of transition metals, how would increasing the size of the ligands affect the stability of a coordination compound?
asked
Feb 3
in
Coordination Chemistry
0
votes
1
answer
13
views
Calculate the standard enthalpy change for the vaporization of 1 mole of water at 100°C and 1 atm pressure. The enthalpy of formation of liquid water is -285.8 kJ/mol and the enthalpy of formation of water vapor is -241.8 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
76
views
How do carbohydrates interact with proteins and what chemical properties govern these interactions?
asked
Jan 31
in
BioChemistry
0
votes
1
answer
59
views
How effective are the current environmental regulations in preventing air pollution from industrial sources in your local area?
asked
Jan 31
in
Environmental Chemistry
0
votes
1
answer
68
views
How can a better understanding of an individual's genetic makeup aid in predicting their response to certain drugs and improve the efficacy of drug therapy?
asked
Jan 30
in
Medicinal Chemistry
0
votes
1
answer
50
views
Calculate the heat capacity of a 50g sample of water that is heated from 25°C to 45°C, given that the specific heat capacity of water is 4.184 J/g°C.
asked
Jan 23
in
Chemical thermodynamics
0
votes
1
answer
64
views
Calculate the enthalpy of combustion of butane (C4H10) in kJ/mol given that its heat of formation value is -126.6 kJ/mol and the heat of formation values of CO2 and H2O are -393.5 kJ/mol and -241.8 kJ/mol, respectively.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
52
views
Calculate the enthalpy change of desorption for a solid substance using the given data: The mass of the substance is 2.5 g, and the temperature change during desorption is 25 °C. The heat capacity of the substance is 1.5 J/g·°C. The molar mass of the substance is 150 g/mol. Assume that the desorption process takes place at constant pressure.
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
70
views
A student wants to prepare polyethylene using the radical polymerization process. The monomer used is ethylene, and the reaction occurs at a temperature of 60°C. The initiator used is benzoyl peroxide. The student wants to know the enthalpy change that occurs during the polymerization process. How can the student calculate the enthalpy of polymerization using the given information?
asked
Jan 22
in
ThermoChemistry
0
votes
1
answer
53
views
What is the solubility of calcium sulfate in water at 25°C, given its Ksp value of 4.93 × 10^-5?
asked
Jan 21
in
Inorganic Chemistry
0
votes
1
answer
72
views
Draw and name all possible structural isomers of C6H14 that belong to the alkane and cycloalkane families.
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
11
views
How can experimental designs aid in theory evaluation?
asked
Jan 16
in
Psychology
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