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0
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39
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How does the presence of heavy metals in contaminated soils affect the absorption and uptake of nutrients in agricultural crops, and what are the potential health risks associated with consuming these crops?
answered
Feb 22
in
Environmental Chemistry
0
votes
39
views
How does surface modification of polymers affect their wettability and adhesion properties?
answered
Feb 17
in
Surface Chemistry
0
votes
76
views
How do metal ions in metalloenzymes and metalloproteins bind to specific amino acid residues in the protein structure, and how does this coordination affect the enzymatic activity of the metalloenzyme?
answered
Feb 13
in
Coordination Chemistry
0
votes
101
views
How can the size and shape of quantum dots be controlled using different synthesis methods in materials chemistry, and what impact does this have on their photoluminescence properties?
answered
Feb 10
in
Materials Chemistry
0
votes
33
views
How can the magnetic properties of a molecular magnet be predicted by using quantum chemistry calculations? Specifically, what is the relationship between the electronic structure of the molecule and its magnetic properties?
answered
Feb 7
in
Quantum Chemistry
0
votes
72
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Calculate the standard enthalpy change for the reaction: 2NaOH (s) + H2SO4 (aq) → Na2SO4 (aq) + 2H2O (l)given that the standard enthalpy of formation of Na2SO4 (aq) is -1385 kJ/mol, and the standard enthalpies of formation of NaOH (s), H2SO4 (aq) and H2O (l) are -425 kJ/mol, -814 kJ/mol and -286 kJ/mol respectively.
answered
Feb 3
in
Chemical thermodynamics
0
votes
95
views
What is the concentration of hydrochloric acid (HCl) in a 100 mL solution if it requires 50 mL of 0.1 M sodium hydroxide (NaOH) to neutralize it during a titration process?
answered
Jan 30
in
Analytical Chemistry
0
votes
73
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Calculate the heat of hydration for the compound sodium sulfate (Na2SO4) given that 3 moles of water are released when 1 mole of the compound dissolves in water. The enthalpy of solution for sodium sulfate is -138 kJ/mol, and the enthalpy of hydration for water is -286 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
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86
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Calculate the exchange current density of a copper-copper(II) ion electrode at 25 °C, given that the standard potential of the electrode is +0.34 V versus the standard hydrogen electrode and the transfer coefficient of the electrode reaction is 0.5.
answered
Jan 23
in
ElectroChemistry
0
votes
47
views
Compare the influences of genetics and environment on temperament.
answered
Jan 20
in
Psychology
0
votes
161
views
What is Marc Bekoff's research focused on?
answered
Jan 17
in
Psychology
0
votes
54
views
Who developed the gate control theory of acupuncture?
answered
Jan 16
in
Psychology
0
votes
76
views
When was the psychoanalytic theory proposed?
answered
Jan 16
in
Psychology
0
votes
102
views
Who developed the theory of Classical Conditioning?
answered
Jan 15
in
Psychology
0
votes
73
views
Which perspective emphasises the role of cultural and environmental factors in shaping behaviour?
answered
Jan 15
in
Psychology
0
votes
51
views
What is the weakness of the dual-process model?
answered
Jan 15
in
Psychology
0
votes
52
views
What are the key behavioural changes seen in depressed individuals according to the behavioural theory?
answered
Jan 13
in
Psychology
0
votes
35
views
What is Post-Traumatic Stress Disorder (PTSD)?
answered
Jan 13
in
Psychology
0
votes
70
views
Who is the founder of psychoanalytic theory?
answered
Jan 13
in
Psychology
0
votes
46
views
Which type of pressure forces fluid out of the capillary?
answered
Jan 8
in
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