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User EdwardoO6191
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0
votes
1
answer
88
views
How does the change in pH affect the rate of reaction between hydrogen peroxide and iodide ion?
asked
Feb 22
in
Chemical kinetics
0
votes
1
answer
90
views
How does the deficiency of the enzyme phenylalanine hydroxylase affect the biosynthesis of amino acids in human metabolism, and what are the potential health consequences of this deficiency?
asked
Feb 19
in
BioChemistry
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votes
1
answer
97
views
How does the composition of a cell membrane affect its permeability to different molecules? Provide a detailed explanation with specific examples.
asked
Feb 18
in
BioChemistry
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votes
1
answer
87
views
How does the binding affinity between proteins affect the stability of protein complexes?
asked
Feb 17
in
BioChemistry
0
votes
1
answer
145
views
What is the effect of ligand substitution on the photochemical properties of lanthanide complexes?
asked
Feb 13
in
PhotoChemistry
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votes
1
answer
88
views
How can we design drugs that specifically target cancer cells without damaging healthy cells?
asked
Feb 12
in
Medicinal Chemistry
0
votes
1
answer
106
views
What is the current density in an electrochemical cell with a copper electrode and a zinc electrode if the current produced by the cell is 0.5 A and the surface area of the copper electrode is 10 cm² while the surface area of the zinc electrode is 5 cm²?
asked
Feb 12
in
ElectroChemistry
0
votes
1
answer
91
views
How can p-nitroaniline be prepared from aniline and nitric acid using a specific procedure? What are the required materials and conditions for the reaction, and what is the mechanism of the reaction? How can the purity and yield of the product be determined and optimized?
asked
Feb 5
in
Chemical synthesis
0
votes
1
answer
93
views
How can chemistry educators increase the relevance and visibility of chemistry in daily life to engage students and improve their understanding of the subject?
asked
Feb 4
in
Chemical education
0
votes
1
answer
96
views
Calculate the standard enthalpy change for the dissolution of 10 grams of potassium hydroxide (KOH) in 100 mL of water. Given that the molar enthalpy of dissolution of solid KOH is -57.61 kJ/mol and the density of water is 1 g/mL.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
146
views
How does changing the concentration of reactants affect the reaction rate and the profitability of the reaction?
asked
Feb 3
in
Chemical kinetics
0
votes
1
answer
125
views
A student needs to calculate the efficiency of a voltaic cell that has a standard potential difference of 0.78 V and produces a current of 2.5 A. The cell is operated for 8 hours and consumes a total of 2400 Coulombs of charge. What is the efficiency of this electrochemical cell?
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
157
views
Which of the following compounds is the strongest acid when dissolved in water: a) CH3COOH b) HCOOH c) HClO4 d) C6H5COOH
asked
Jan 21
in
Organic Chemistry
0
votes
1
answer
97
views
Compare and contrast the information-processing approach to cognitive development with Piaget's theory.
asked
Jan 20
in
Psychology
0
votes
1
answer
150
views
What is the difference between secure and insecure attachment?
asked
Jan 20
in
Psychology
0
votes
0
answers
109
views
Who proposed the cognitive development theory?
asked
Jan 20
in
Psychology
0
votes
1
answer
69
views
According to the biological theory, what is the role of genetic factors in anxiety?
asked
Jan 17
in
Psychology
0
votes
1
answer
146
views
According to the levels of processing model, how is memory processed?
asked
Jan 16
in
Psychology
0
votes
1
answer
116
views
What is the linguistic relativity hypothesis?
asked
Jan 14
in
Psychology
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votes
1
answer
57
views
What is the socio-cultural theory of language development?
asked
Jan 14
in
Psychology
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