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1
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26
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Identify the type of inorganic solid formed by the following elements: sodium and chlorine.
asked
Feb 20
in
Inorganic Chemistry
0
votes
1
answer
30
views
How does the addition of a strong base affect the percentage of ionization of a weak acid, such as acetic acid, in a solution with an initial concentration of 0.1 M?
asked
Feb 17
in
Chemical equilibrium
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1
answer
29
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How does the addition of a catalyst affect the equilibrium position of the redox reaction between potassium permanganate and oxalic acid? Provide a detailed explanation of the calculations involved in solving this problem.
asked
Feb 17
in
Chemical equilibrium
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1
answer
37
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How can we predict the selectivity and activity of a catalyst in a specific reaction using quantum chemistry calculations?
asked
Feb 14
in
Quantum Chemistry
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1
answer
60
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What is the mechanism of energy transfer in a chemical reaction and how can it be described using quantum mechanics?
asked
Feb 13
in
Quantum Chemistry
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1
answer
84
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How can the synthesis of biodegradable polymers be optimized to achieve the desired mechanical properties for its intended use in a given application?
asked
Feb 11
in
Polymer Chemistry
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1
answer
42
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How can the mechanical properties and biocompatibility of polymer-based materials used in 3D printing be optimized for biomedical applications?
asked
Feb 10
in
Polymer Chemistry
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1
answer
37
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How can the electric double layer be manipulated to control the colloidal stability of a sol?
asked
Feb 7
in
Surface Chemistry
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votes
1
answer
34
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How can chemistry teachers or institutions provide adequate and effective hands-on experimentation opportunities for students, despite limited resources and equipment?
asked
Feb 5
in
Chemical education
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1
answer
70
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Can the unique photophysical properties of lanthanide complexes be harnessed for efficient light harvesting and photocatalysis? Explore the photochemical properties of selected lanthanide complexes to demonstrate their potential applications in these fields.
asked
Feb 3
in
PhotoChemistry
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1
answer
56
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Calculate the standard enthalpy of precipitation for the reaction: AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) given that the standard enthalpies of formation for AgNO3(aq), NaCl(aq), AgCl(s), and NaNO3(aq) are -123.2 kJ/mol, -407.3 kJ/mol, -127.0 kJ/mol, and -467.3 kJ/mol, respectively.
asked
Feb 3
in
ThermoChemistry
0
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1
answer
136
views
A gas is contained in a cylinder at a pressure of 1 atm and a temperature of 25°C. The cylinder is fitted with a piston that can be moved to change the volume. The gas is allowed to expand irreversibly to a final pressure of 0.5 atm, and the temperature is kept constant. Calculate the work done by the system, and determine if the process is endothermic or exothermic.
asked
Jan 22
in
Physical Chemistry
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1
answer
64
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A 25 mL solution of 0.1 M AgNO3 is mixed with a 50 mL solution of 0.05 M NaCl. What is the mass of AgCl that will be produced if a reaction occurs? (Assume the reaction goes to completion.)
asked
Jan 22
in
Chemical reactions
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votes
1
answer
38
views
Why is the social-cognitive theory important to psychology?
asked
Jan 20
in
Psychology
0
votes
1
answer
46
views
Where did the concept of social anxiety disorder originate?
asked
Jan 20
in
Psychology
0
votes
1
answer
81
views
Who proposed the stages of cognitive development?
asked
Jan 20
in
Psychology
0
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1
answer
90
views
Why is explanatory power an important criterion for evaluating neuroscience theories?
asked
Jan 20
in
Psychology
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1
answer
68
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According to cognitive-behavioural theory, how do irrational beliefs contribute to emotional difficulties?
asked
Jan 17
in
Psychology
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1
answer
44
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How does cognitive-behavioural therapy CBT help individuals adjust to trauma?
asked
Jan 17
in
Psychology
0
votes
1
answer
34
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When was the evolutionary theory first proposed?
asked
Jan 16
in
Psychology
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