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39
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How does the molecular structure of polymer-based photovoltaic materials affect their efficiency in converting solar energy into electrical energy?
answered
Feb 21
in
Polymer Chemistry
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28
views
How does the regulation of the glycolytic pathway differ between aerobic and anaerobic conditions in humans?
answered
Feb 20
in
BioChemistry
0
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65
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Calculate the standard enthalpy change for the reaction of [Co(H2O)6]2+(aq) with 2 Cl-(aq) to form [CoCl4]2-(aq) and 6 H2O(l) at a temperature of 298 K. Given the following thermodynamic data:[Co(H2O)6]2+(aq) + 4 Cl-(aq) → [CoCl4]2-(aq) + 6 H2O(l) ΔH°= -98.7 kJ mol-1[Co(H2O)6]2+(aq) + 2 Cl-(aq) → [CoCl4]2-(aq) + 4 H2O(l) ΔH°= -65.5 kJ mol-1Assume that the enthalpy of hydration for Cl- (aq) is -364 kJ mol-1.
answered
Feb 3
in
Chemical thermodynamics
0
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85
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Calculate the standard enthalpy change for the reaction 2H2(g) + O2(g) ⟶ 2H2O(g), given that the standard enthalpies of formation of H2(g), O2(g), and H2O(g) are 0 kJ/mol, 0 kJ/mol, and -242 kJ/mol, respectively.
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Feb 3
in
Chemical thermodynamics
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97
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How can a chemical engineer develop a more efficient and cost-effective process for producing food additives without compromising their safety and quality?
answered
Jan 30
in
Chemical engineering
0
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95
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What are some effective study strategies and techniques that can help improve preparation for chemistry exams?
answered
Jan 30
in
Chemical education
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120
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What is the amount (in moles) of copper ions present in a 500 mL solution of 0.1 M copper sulfate, as determined using coulometry?
answered
Jan 30
in
Analytical Chemistry
0
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99
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A student performed an experiment in which 2.1 moles of nitrogen and 0.8 moles of hydrogen react to form ammonia gas. If the equilibrium constant for the reaction is 3.5 x 10^-4 at a certain temperature, what is the equilibrium concentration of ammonia?
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Jan 22
in
Chemical reactions
0
votes
36
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When assessing the effectiveness of Behavioural Activation therapy, what are some of the potential limitations to consider?
answered
Jan 20
in
Psychology
0
votes
49
views
When did the concept of compartmentalising begin to emerge?
answered
Jan 20
in
Psychology
0
votes
84
views
Where did Richard Lazarus conduct his research on stress?
answered
Jan 20
in
Psychology
0
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139
views
When was cognitive behavioural therapy CBT developed?
answered
Jan 17
in
Psychology
0
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51
views
How can behaviourism be used to explain phobias?
answered
Jan 17
in
Psychology
0
votes
40
views
What is evidence-based practice?
answered
Jan 16
in
Psychology
0
votes
38
views
What is euthanasia?
answered
Jan 15
in
Psychology
0
votes
90
views
Can interpersonal difficulties cause depression?
answered
Jan 13
in
Psychology
0
votes
61
views
What explains why water molecules tend to stick together?
answered
Jan 6
in
Science
0
votes
46
views
The what is the number of wave cycles that pass a specified point in space in a specified amount of time?
answered
Jan 2
in
Science
0
votes
18
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Radiotherapy is effective against cancer because cancer cells reproduce rapidly and, consequently, are more sensitive to this?
answered
Dec 31, 2024
in
Science
0
votes
47
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Name the one metal that melts below room temperature?
answered
Dec 31, 2024
in
Science
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