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How does the excitation of lanthanide complexes affect their luminescence properties? Can this be used for any practical applications, such as sensing or imaging?
asked
Feb 20
in
PhotoChemistry
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votes
1
answer
35
views
How does the energy state of an electron affect the rate of electron transfer in redox reactions?
asked
Feb 20
in
Quantum Chemistry
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1
answer
39
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What is the effect of temperature on the reaction rate of the reaction between sodium thiosulfate and hydrochloric acid, and how can it be quantitatively measured using the rate of disappearance of the reactant or the rate of appearance of the product?
asked
Feb 20
in
Chemical kinetics
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1
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37
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What is the effect of temperature on the reaction rate of the decomposition of hydrogen peroxide catalyzed by manganese dioxide? How does the reaction rate change as the temperature increases, and what is the activation energy of the reaction?
asked
Feb 20
in
Chemical kinetics
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1
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29
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What is the effect of surface area on the rate of a chemical reaction between zinc and hydrochloric acid? How does the rate of the reaction change when the size of the zinc particles is varied?
asked
Feb 19
in
Chemical kinetics
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1
answer
85
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What is the percent ionization of a 0.1 M solution of acetic acid (pKa = 4.76) at 25°C, if its ionization constant (Ka) changes to 1.32 x 10^-5 when the temperature is raised to 50°C?
asked
Feb 13
in
Chemical equilibrium
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1
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129
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Calculate the standard enthalpy change (ΔH°) for the reaction where 50.0 mL of 2.0 M hydrochloric acid reacts with 50.0 mL of 2.0 M sodium hydroxide to form 50.0 mL of 2.0 M sodium chloride and water, given that the density of the solutions is 1.00 g/mL and the specific heat capacity of the solutions is 4.18 J/g·°C.
asked
Feb 3
in
Chemical thermodynamics
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1
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47
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How can technology-based interventions help with recovery?
asked
Jan 17
in
Psychology
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1
answer
103
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How can cultural psychology inform the development of AI models?
asked
Jan 17
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Psychology
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1
answer
79
views
What is the word superiority effect?
asked
Jan 16
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Psychology
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votes
1
answer
55
views
According to the social cognitive theory, how do individuals learn from others?
asked
Jan 16
in
Psychology
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votes
1
answer
95
views
What is the main treatment for hoarding disorder?
asked
Jan 15
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Psychology
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1
answer
44
views
Who developed social identity theory?
asked
Jan 15
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Psychology
0
votes
1
answer
19
views
What is dopamine?
asked
Jan 14
in
Psychology
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votes
1
answer
31
views
What is the survey method?
asked
Jan 13
in
Psychology
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votes
1
answer
62
views
Who developed the theory of cognitive development?
asked
Jan 10
in
Psychology
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votes
1
answer
55
views
What is self-actualisation?
asked
Jan 10
in
Psychology
0
votes
1
answer
86
views
Which feature in maps allows users to make corrections between magnetic north and true north?
asked
Jan 8
in
Science
0
votes
1
answer
119
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Where is chlorine gas produced?
asked
Jan 8
in
Science
0
votes
1
answer
42
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What was the first antiseptic called?
asked
Jan 8
in
Science
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