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How does the presence of heavy metals such as lead, arsenic, and cadmium in soil impact the uptake of nutrients by plants and ultimately affect crop health and yield?
asked
Feb 22
in
Environmental Chemistry
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votes
1
answer
36
views
What is the relationship between the electronic and magnetic properties of metal-organic frameworks and their crystal structures? How does this affect their potential uses in gas storage, catalysis and molecular sensing?
asked
Feb 20
in
Quantum Chemistry
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1
answer
62
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What is the effect of increasing the polarity of the solvent on the rate of the reaction between hydrochloric acid and magnesium?
asked
Feb 13
in
Chemical kinetics
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1
answer
62
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In the context of photochemistry and supramolecular assemblies, how do the photochemical properties of a supramolecular assembly vary when the size and shape of the assembly are altered, and what factors influence these changes?
asked
Feb 13
in
PhotoChemistry
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1
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63
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Using retrosynthetic analysis, outline a viable multi-step synthesis of ibuprofen from commercially available starting materials. Include appropriate reagents and conditions.
asked
Feb 13
in
Organic Chemistry
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30
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How can the purity of a crude sample of a chemical be improved through the use of various purification techniques, such as distillation, chromatography or crystallization, and what factors should be considered in selecting the most appropriate method for the specific chemical being purified? Develop a process to achieve a 95% pure sample of the desired chemical.
asked
Feb 10
in
Chemical engineering
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answer
39
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How can the performance of polymer-based membranes be improved for water treatment applications in terms of permeability and selectivity?
asked
Feb 10
in
Polymer Chemistry
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votes
1
answer
32
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How can chemistry teachers provide effective support to students with learning disabilities during laboratory experiments?
asked
Feb 6
in
Chemical education
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1
answer
36
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How can chemistry educators effectively advocate for increased funding for chemistry education in schools and universities to promote science literacy and prepare students for careers in chemistry?
asked
Feb 4
in
Chemical education
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votes
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44
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How can chemistry be applied to address economic and societal challenges, such as developing sustainable and environmentally-friendly technologies, improving healthcare systems, and creating new materials for various industries?
asked
Feb 4
in
Chemical education
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votes
1
answer
77
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What is the activation energy of the reaction mechanism for the catalytic conversion of methane to methanol, using density functional theory calculations?
asked
Jan 31
in
Computational Chemistry
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1
answer
71
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Calculate the cell potential for the following electrochemical reaction at 25°C: Zn(s) + 2AgNO3(aq) → Zn(NO3)2(aq) + 2Ag(s) Given: E°(Ag+/Ag) = +0.80 V E°(Zn2+/Zn) = −0.76 V
asked
Jan 23
in
ElectroChemistry
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1
answer
69
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What is the pH of a 0.1 M solution of hydrochloric acid?
asked
Jan 21
in
Inorganic Chemistry
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1
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98
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When did Dr. Lydia Kwok conduct the study?
asked
Jan 17
in
Psychology
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1
answer
126
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How does Bandura's social learning theory differ from Skinner's behaviourism?
asked
Jan 17
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Psychology
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1
answer
62
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What criticisms have been lodged against normative influence theory?
asked
Jan 16
in
Psychology
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votes
1
answer
46
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Who proposed the evolutionary theory?
asked
Jan 16
in
Psychology
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votes
1
answer
37
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When evaluating a theory in existential psychology, what is the importance of considering the scope of the theory?
asked
Jan 16
in
Psychology
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1
answer
81
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Who proposed the 'Social Cognitive Theory'?
asked
Jan 16
in
Psychology
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1
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48
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According to Erikson, when does the trust vs. mistrust stage occur?
asked
Jan 15
in
Psychology
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