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How does the size and shape of nanoparticles affect their photochemical properties? Use specific examples and scientific evidence to support your answer.
asked
Feb 24
in
PhotoChemistry
0
votes
1
answer
28
views
How does the size and shape of the catalyst affect the rate of a catalytic reaction?
asked
Feb 24
in
Physical Chemistry
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votes
1
answer
36
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How does light intensity affect the rate of a specific photochemical reaction involving the conversion of cis-2-butene into trans-2-butene?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
33
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How does the molecular structure of a drug affect its pharmacodynamic properties and ultimately its effectiveness in treating a particular disease?
asked
Feb 21
in
Medicinal Chemistry
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votes
1
answer
33
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How does the energy profile of an excited state of a molecule differ from its ground state, and how can we predict the transitions between them using quantum chemical calculations?
asked
Feb 20
in
Computational Chemistry
0
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1
answer
24
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How does the concentration of the catalyst affect the reaction rate of the decomposition of hydrogen peroxide?
asked
Feb 18
in
Chemical kinetics
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1
answer
37
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What is the mechanism of acid-catalyzed ring-opening of epoxides?
asked
Feb 17
in
Organic Chemistry
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votes
1
answer
41
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How can chemistry educators increase the emphasis on safety protocols in chemistry labs and ensure that students are properly trained to prevent accidents and handle hazardous materials?
asked
Feb 4
in
Chemical education
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1
answer
41
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Calculate the standard enthalpy of formation of water if you know that the standard enthalpy of combustion of hydrogen is -286 kJ/mol and the standard enthalpy of combustion of oxygen is -394 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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1
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64
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Calculate the standard electrode potential for the redox reaction: Fe3+(aq) + e- → Fe2+(aq) Given that the standard electrode potential for the reduction of Fe3+(aq) to Fe2+(aq) is +0.771 V and the standard electrode potential for the reduction of H+(aq) to H2(g) is 0.000 V.
asked
Feb 3
in
Chemical thermodynamics
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1
answer
101
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How does a change in the number of electrons affect the dipole moment of a molecule as predicted by ab initio calculations?
asked
Jan 30
in
Computational Chemistry
+1
vote
1
answer
98
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What is the concentration of lead (Pb) in a water sample collected from a local river, and how does it compare to the maximum permissible limit set by the World Health Organization (WHO)? Determine the answer using atomic absorption spectroscopy and provide a detailed report including instrumental parameters, experimental procedure, and results.
asked
Jan 30
in
Analytical Chemistry
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1
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120
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What is the concentration of iron(II) sulfate in a sample of water taken from a lake, using spectrophotometry with a known molar absorptivity of 11,300 L/mol*cm, if the absorbance of the sample is measured to be 0.423 at a wavelength of 510 nm?
asked
Jan 30
in
Analytical Chemistry
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1
answer
76
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How can the composition of a mixture of caffeine and aspirin be analyzed using liquid chromatography?
asked
Jan 29
in
Analytical Chemistry
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1
answer
60
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Calculate the bond order and bond length of the N-O bond in the nitrite ion (NO2-).
asked
Jan 23
in
Inorganic Chemistry
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1
answer
78
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A chemistry student wants to measure the surface tension of a liquid but does not have access to a tensiometer. How can the student measure the surface tension using simple materials found in a chemistry lab?
asked
Jan 22
in
Surface Chemistry
0
votes
1
answer
78
views
According to the social learning theory, how do people acquire new behaviours?
asked
Jan 20
in
Psychology
0
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1
answer
102
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Who proposed the Dual Process Model of Coping with Bereavement?
asked
Jan 20
in
Psychology
0
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1
answer
19
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How did Asch's conformity study demonstrate the power of social influence?
asked
Jan 17
in
Psychology
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1
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81
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How does the conflict theory explain social inequality?
asked
Jan 15
in
Psychology
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