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How does the order of nucleotides in DNA determine the sequence of amino acids in a protein during RNA transcription and translation?
asked
Feb 22
in
BioChemistry
0
votes
1
answer
75
views
What is the polarity of the bond between hydrogen and oxygen in a water molecule?
asked
Feb 18
in
Chemical bonding
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votes
1
answer
23
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What is the specific chemical structure of RNA and how do the base pairings differ from DNA? How does the structure of RNA contribute to its function within the cell?
asked
Feb 14
in
BioChemistry
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votes
1
answer
118
views
What is the effect of incorporating biodegradable additives such as vegetable oils or starch on the physical and mechanical properties of polymer-based packaging materials, and how do these properties affect their environmental impact?
asked
Feb 13
in
Polymer Chemistry
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votes
1
answer
127
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What are the consequences of inadequate emphasis on chemical reactions and equations in chemical education, and how can they be addressed to improve the understanding and application of chemistry principles in real-life scenarios?
asked
Feb 13
in
Chemical education
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1
answer
112
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How have environmental regulations, specifically in the area of hazardous waste management, impacted the reduction of pollutants and their effects on the environment?
asked
Feb 13
in
Environmental Chemistry
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votes
1
answer
104
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How does the coordination chemistry of metalloenzymes and metalloproteins affect their biological activity and function? Discuss with examples.
asked
Feb 12
in
Coordination Chemistry
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votes
1
answer
110
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How can first principles calculations be used to predict the electronic and magnetic properties of topological materials and provide insights into their potential applications in spintronics and quantum computing?
asked
Feb 5
in
Quantum Chemistry
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votes
1
answer
90
views
How can medicinal chemists develop new treatments for skin diseases that are both effective and safe for long-term use?
asked
Feb 5
in
Medicinal Chemistry
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votes
1
answer
161
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Consider a zinc electrode in a concentration cell that is connected to a copper electrode through a salt bridge. During the electrolysis of an aqueous solution of ZnSO4, a current of 2.5 A is passed through the cell for 20 minutes. Calculate the mass of zinc deposited on the electrode during this time assuming 100% efficiency. (Molar mass of zinc = 65.38 g/mol)
asked
Feb 3
in
ElectroChemistry
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votes
1
answer
133
views
Calculate the standard enthalpy of formation of carbon dioxide given the following information: - Standard enthalpy of formation of graphite = 0 kJ/mol- Standard enthalpy of formation of oxygen gas = 0 kJ/mol- Enthalpy of combustion of graphite = -393.5 kJ/mol- Enthalpy of combustion of carbon monoxide = -283.0 kJ/mol- Enthalpy of combustion of hydrogen gas = -285.8 kJ/mol
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
127
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Calculate the standard enthalpy change for the dissolution of 3.00 moles of sodium chloride in water, given that the molar enthalpy of solution of sodium chloride is -3.88 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
90
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What are the molecular vibrations of carbon dioxide and how do they contribute to its infrared spectrum?
asked
Jan 31
in
Physical Chemistry
0
votes
1
answer
98
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What are the isomers of the molecule C4H8O and how can you distinguish between them?
asked
Jan 31
in
Chemical bonding
0
votes
1
answer
91
views
Calculate the corrosion potential of iron in an acidic environment with a pH of 3.5, given that the half-reaction for the reduction of Fe3+ to Fe2+ is Fe3+ + e- → Fe2+ and the standard reduction potential (E°) for this half-reaction is +0.771 V.
asked
Jan 23
in
ElectroChemistry
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votes
1
answer
66
views
How does reliability differ from validity in psychometrics?
asked
Jan 20
in
Psychology
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votes
1
answer
110
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Please compare the stages of cognitive development proposed by Piaget and Vygotsky.
asked
Jan 20
in
Psychology
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votes
1
answer
64
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According to the demand characteristics theory, what do participants tend to do when they perceive the aims of a study?
asked
Jan 20
in
Psychology
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1
answer
88
views
Who developed the Cognitive Theory of Culture?
asked
Jan 16
in
Psychology
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votes
1
answer
89
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Where does the opponent-process theory suggest addiction comes from?
asked
Jan 15
in
Psychology
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