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What is the optimal reaction temperature and time required for the synthesis of nylon-6,6 from adipic acid and hexamethylenediamine to achieve maximum yield and purity?
asked
Feb 21
in
Chemical synthesis
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votes
1
answer
26
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What is the most efficient method for synthesizing 2,4-dinitrophenol from phenol and nitric acid with a high yield?
asked
Feb 21
in
Chemical synthesis
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1
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34
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How does the coordination chemistry of transition metals affect the biological activity of metal-containing compounds? Provide at least two examples of bioactive coordination compounds and discuss their potential applications in medicine or biotechnology.
asked
Feb 19
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Coordination Chemistry
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27
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What is the effect of concentration and temperature on the conductivity of potassium chloride solution?
asked
Feb 19
in
Inorganic Chemistry
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1
answer
33
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What is the effect of the chemical structure and composition of photovoltaic materials on their ability to convert light energy to electrical energy?
asked
Feb 18
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PhotoChemistry
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1
answer
27
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How does the change in the type of solvent affect the rate of a chemical reaction?
asked
Feb 18
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Chemical kinetics
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26
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What is the role of metal ions in the structure and function of the metalloenzymes and metalloproteins and how do coordinative bonds between the metal ions and amino acid residues affect enzyme/protein activity?
asked
Feb 13
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Coordination Chemistry
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1
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42
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How does the chirality of a molecule affect its photochemical properties in terms of absorption and emission spectra? Provide specific examples of chiral molecules and their corresponding spectra to support your answer.
asked
Feb 12
in
PhotoChemistry
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1
answer
38
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What are the effects of chirality on the photochemical properties of a molecule and how can these effects be utilized for applications such as asymmetric synthesis or molecular sensors?
asked
Feb 12
in
PhotoChemistry
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votes
1
answer
38
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How can the efficiency of the production process of paints and coatings be improved while minimizing the negative impact on the environment?
asked
Feb 7
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Chemical engineering
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1
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73
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Calculate the standard enthalpy change for the vaporization reaction of 2.00 moles of water at 100°C and 1 atm pressure, given that the molar enthalpy of vaporization of water is 40.7 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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114
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Calculate the standard electrode potential for the following reaction: Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)Given: Standard reduction potential for Ag+ + e- → Ag is 0.80 VStandard reduction potential for Cu2+ + 2e- → Cu is 0.34 V
asked
Feb 3
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ElectroChemistry
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1
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88
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What is the concentration of copper ions in a given water sample using polarography?
asked
Jan 30
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Analytical Chemistry
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34
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A redox reaction is at equilibrium with a standard cell potential of +0.54 V. If the concentration of the oxidizing agent is increased by a factor of 5, what effect will this have on the position of the equilibrium and the cell potential? Assume that the reaction takes place at 25°C.
asked
Jan 22
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Chemical equilibrium
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1
answer
42
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According to the Ames room illusion, how does our perception of size and distance vary with changes in context?
asked
Jan 20
in
Psychology
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1
answer
67
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Compare and contrast behavioural activation BA and cognitive-behavioural therapy CBT .
asked
Jan 17
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Psychology
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1
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87
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What is the role of operant conditioning in addiction?
asked
Jan 15
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Psychology
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1
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89
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According to Aaron Beck's cognitive theory of depression, why do people experience depression?
asked
Jan 15
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Psychology
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1
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76
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According to Operant Conditioning, what is reinforcement?
asked
Jan 15
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Psychology
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70
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What is the purpose of the superego in psychoanalytic theory?
asked
Jan 14
in
Psychology
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