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What is the preferred method for synthesis of symmetrical ethers using alcohols and acids, and what are some limitations and drawbacks of this method?
asked
Feb 22
in
Organic Chemistry
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votes
1
answer
37
views
How does the molecular structure of luminescent materials affect their photochemical properties?
asked
Feb 21
in
PhotoChemistry
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votes
1
answer
97
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How does inadequate training for chemistry teachers affect the quality of education in high school chemistry classes?
asked
Feb 13
in
Chemical education
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votes
1
answer
39
views
How can the magnetic properties of iron oxide nanoparticles be modified to make them more suitable for data storage applications?
asked
Feb 7
in
Materials Chemistry
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votes
1
answer
40
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How can the limited availability of chemistry-related extracurricular activities be addressed in order to enhance the learning experience of chemistry students and promote interest in the subject?
asked
Feb 7
in
Chemical education
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1
answer
34
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How can technology be effectively integrated into chemistry education to help students better understand complex concepts, without becoming a distraction or hindrance to their learning process?
asked
Feb 6
in
Chemical education
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votes
1
answer
34
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How can magnetic resonance spectroscopy be used to determine the purity of a chemical compound? Provide a step-by-step explanation of the process and include an example.
asked
Feb 5
in
Physical Chemistry
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1
answer
62
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Calculate the standard enthalpy change for the formation of methane gas (CH4) from its elements carbon (solid, graphite) and hydrogen gas (H2) given the following data:ΔHf° (C(graphite)) = 0 kJ/molΔHf° (H2(g)) = 0 kJ/molΔHc° (CH4(g)) = -890.4 kJ/mol
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
63
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Calculate the percent composition of copper sulfate pentahydrate (CuSO4 • 5H2O).
asked
Feb 3
in
Inorganic Chemistry
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votes
1
answer
121
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What are the different types of biomolecules found in living organisms and how are they classified based on their chemical structures and functions? Provide examples of each type of biomolecule and explain their importance in biological systems.
asked
Jan 31
in
Organic Chemistry
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votes
1
answer
101
views
What is the effect of temperature on the phase transition of water from liquid to solid using Monte Carlo simulations?
asked
Jan 31
in
Computational Chemistry
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votes
1
answer
133
views
What is the concentration of copper ions in a 25 mL sample of a 0.05 M copper sulfate solution when the sample is analyzed using coulometry with a current of 2.5 A for 10 seconds?
asked
Jan 30
in
Analytical Chemistry
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votes
1
answer
107
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A chemical engineer needs to design a distillation column for the separation of a mixture containing ethanol (boiling point of 78.4°C) and water. The desired composition of the distillate is a minimum of 90% ethanol. What is the minimum number of theoretical trays needed in the column to achieve this composition, given that the feed contains 40% ethanol and the reflux ratio is 1.5?
asked
Jan 22
in
Chemical engineering
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votes
1
answer
132
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What is the Cattell-Horn theory?
asked
Jan 20
in
Psychology
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votes
1
answer
78
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According to the opponent-process theory of color vision, why do we see afterimages?
asked
Jan 17
in
Psychology
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votes
1
answer
112
views
What is the difference between introjection and projection in Gestalt therapy?
asked
Jan 16
in
Psychology
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votes
1
answer
39
views
What approach is based on the premise that behaviour can be learned through rewards and punishments?
asked
Jan 15
in
Psychology
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votes
1
answer
50
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According to the self-categorisation theory, what is the importance of the in-group?
asked
Jan 15
in
Psychology
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votes
1
answer
76
views
Why is motivation important in educational psychology?
asked
Jan 15
in
Psychology
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votes
1
answer
85
views
What is the facial feedback hypothesis?
asked
Jan 13
in
Psychology
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