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1
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What is the major product obtained from the reaction between 2-bromo-2-methylbutane and alcoholic potassium hydroxide, and why?
asked
5 days
ago
in
Organic Chemistry
0
votes
1
answer
16
views
How does the reaction mechanism affect the rate of the iodine clock reaction between potassium iodide and hydrogen peroxide in the presence of a catalyst?
asked
5 days
ago
in
Chemical kinetics
0
votes
1
answer
25
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How will the equilibrium position of the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) shift in response to an increase in pressure if the reaction is initially at equilibrium?
asked
6 days
ago
in
Chemical equilibrium
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votes
1
answer
23
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What is the effect of varying electrolyte concentration on the conductivity of inorganic compounds?
asked
6 days
ago
in
Inorganic Chemistry
0
votes
1
answer
24
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What is the effect of electrolyte concentration on the stability and coagulation of a colloidal suspension? Provide experimental evidence to demonstrate your conclusion.
asked
6 days
ago
in
Surface Chemistry
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votes
1
answer
27
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How does the coordination environment of the central metal ion in the metalloenzyme carbonic anhydrase affect its enzymatic activity, and how can this be manipulated to improve or inhibit the enzyme's function?
asked
Feb 19
in
Coordination Chemistry
0
votes
1
answer
30
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What is the boiling point of sodium chloride (NaCl) at standard atmospheric pressure (1 atm)? Show your complete calculation.
asked
Feb 14
in
Inorganic Chemistry
0
votes
1
answer
36
views
How does increasing the temperature affect the reaction rate of the chemical reaction between magnesium ribbon and hydrochloric acid?
asked
Feb 13
in
Chemical kinetics
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votes
1
answer
48
views
How does changing the temperature affect the equilibrium constant (Kc) and the formation of Fe(SCN)2+ complex ion from Fe3+ and SCN- ions?
asked
Feb 3
in
Chemical equilibrium
0
votes
1
answer
88
views
What is the effect of adding different amounts of titanium on the strength and hardness of a particular alloy made of aluminum and copper, and how does this affect its suitability for use in aerospace applications?
asked
Jan 30
in
Materials Chemistry
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votes
1
answer
112
views
How can X-ray diffraction be used to identify the crystal structure and composition of a sample?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
58
views
Calculate the lattice energy of MgO using the Born-Haber cycle given the following information: the standard enthalpies of formation of MgO(s), Mg(g), and O2(g) are -601.6 kJ/mol, 147.3 kJ/mol and 0 kJ/mol respectively, the ionisation energy of Mg(g) is 737.7 kJ/mol, the electron affinity of O2(g) is -141 kJ/mol, and the bond energy of the O2 molecule is 498 kJ/mol.
asked
Jan 23
in
Inorganic Chemistry
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votes
1
answer
65
views
Calculate the heat of crystallization for NaCl from the given data:The enthalpy of fusion of NaCl = 28.3 kJ/mol and the heat capacity of NaCl is approximately constant at 40.0 J/mol.K for temperatures close to room temperature. The melting point of NaCl is 801 °C and the density of the solid NaCl is 2.16 g/cm³.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
64
views
Calculate the enthalpy change of solution for 2.0 moles of sodium chloride in 500.0 mL of water at 25°C. The molar heat of solution of sodium chloride is -3.91 kJ/mol.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
51
views
Calculate the change in entropy of the system when 2 moles of ammonia react to form 3 moles of hydrogen gas and 1 mole of nitrogen gas. The reaction takes place at a constant temperature of 298 K and at a pressure of 1 atm. The molar entropy of each component in the reaction is given below:Ammonia: 192.5 J/K·molHydrogen gas: 130.6 J/K·molNitrogen gas: 191.6 J/K·mol
asked
Jan 23
in
Chemical thermodynamics
0
votes
1
answer
96
views
What is the pKa value of acetic acid and what is the pH of a 0.1 M acetic acid solution when it is in equilibrium with its conjugate base, acetate ion?
asked
Jan 21
in
Organic Chemistry
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votes
1
answer
14
views
How does the Moore's law impact the design of human-machine interfaces?
asked
Jan 20
in
Psychology
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votes
1
answer
28
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What are the benefits of using evidence-based practice?
asked
Jan 16
in
Psychology
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votes
1
answer
14
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Why is it important to consider the impact of co-occurring mental health conditions when evaluating eating disorders?
asked
Jan 16
in
Psychology
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votes
1
answer
56
views
Why is motivation important in educational psychology?
asked
Jan 15
in
Psychology
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