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27
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How does the size and shape of a metallic nanoparticle affect its electronic and optical properties, and what is the relationship between the size of a nanoparticle and its surface plasmon resonance frequency?
answered
Feb 24
in
Quantum Chemistry
0
votes
31
views
What is the effect of light intensity on the rate of the reaction between sodium thiosulfate and hydrochloric acid?
answered
Feb 22
in
Chemical kinetics
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votes
30
views
What is the standard enthalpy change for the reaction between hydrochloric acid and sodium hydroxide to form aqueous sodium chloride and water?
answered
Feb 22
in
Chemical thermodynamics
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votes
30
views
What are the main mechanisms of antibacterial drug resistance in gram-positive bacteria, and how can medicinal chemists develop new antibiotics to combat these mechanisms?
answered
Feb 20
in
Medicinal Chemistry
0
votes
33
views
How will the equilibrium position of the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) shift in response to an increase in pressure if the reaction is initially at equilibrium?
answered
Feb 20
in
Chemical equilibrium
0
votes
32
views
How does the concentration and type of dopant affect the electrical conductivity of graphene and what are the practical implications for its use in electronic devices?
answered
Feb 18
in
Materials Chemistry
0
votes
35
views
What is the effect of pH on the adsorption behavior of bovine serum albumin (BSA) on a silica surface using quartz crystal microbalance (QCM) measurement technique?
answered
Feb 17
in
Surface Chemistry
0
votes
31
views
What are the key factors that contribute to the stability of beta-sheet structures in protein folding, as revealed by molecular dynamics simulations?
answered
Feb 13
in
Computational Chemistry
0
votes
96
views
How do different chemical functional groups affect the electronic properties and reactivity of surfaces in catalytic reactions, as determined by density functional theory calculations?
answered
Feb 12
in
Computational Chemistry
0
votes
35
views
How can chemistry students in underprivileged areas gain access to adequate textbooks and resources, and what can be done to address the limited availability of these materials?
answered
Feb 5
in
Chemical education
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75
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What is the concentration of a solution of iron(II) sulfate if its absorbance at a wavelength of 495 nm is 0.456 in a 1 cm cuvette with a path length of 1 cm? The molar absorptivity of iron(II) sulfate at 495 nm is 8100 L/mol·cm. The molecular weight of iron(II) sulfate is 151.91 g/mol.
answered
Jan 30
in
Analytical Chemistry
0
votes
103
views
A student wants to maximize the production of ammonia from nitrogen and hydrogen gases using the Haber process. Using Le Chatelier's principle, how can the reaction conditions be adjusted to increase the yield of ammonia? Specifically, how can changes in temperature, pressure, and concentration of reactants be used to increase the equilibrium concentration of ammonia?
answered
Jan 22
in
Chemical reactions
0
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123
views
What is the boiling point of cyclohexane and n-hexane? How do their boiling points compare?
answered
Jan 21
in
Organic Chemistry
0
votes
152
views
According to Piaget's theory, how do children learn?
answered
Jan 20
in
Psychology
0
votes
76
views
Why is Erik Erikson's theory important for understanding human development?
answered
Jan 17
in
Psychology
0
votes
74
views
What are the similarities between cognitive dissonance theory and self-perception theory?
answered
Jan 17
in
Psychology
0
votes
39
views
How does the ecological theory view individual trauma?
answered
Jan 17
in
Psychology
0
votes
39
views
What is a theory in psychology?
answered
Jan 16
in
Psychology
0
votes
37
views
According to Piaget, what is the concept of object permanence?
answered
Jan 15
in
Psychology
0
votes
33
views
What is loudness?
answered
Jan 14
in
Psychology
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