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What is the pKa value of the compound benzene sulfonic acid and how does it affect the acidity of the molecule in different solvents?
asked
Feb 22
in
Organic Chemistry
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1
answer
33
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What is the role of the metal ion in the active site of metalloenzymes involved in the oxidation of glucose? Provide a detailed explanation of the coordination chemistry of the metal ion and the amino acid residues that bind to it.
asked
Feb 20
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Coordination Chemistry
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37
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How does the energy of excited state molecules vary as a function of their electronic configuration?
asked
Feb 20
in
Computational Chemistry
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answer
31
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How does the addition of nanoparticles affect the thermal stability of polymeric materials in polymer nanocomposites?
asked
Feb 17
in
Polymer Chemistry
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1
answer
32
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What is the mechanism of photodegradation of a certain organic compound (e.g. benzene)? Provide a detailed explanation of the photophysical processes involved and the products formed as a result of the degradation.
asked
Feb 14
in
Physical Chemistry
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1
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36
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How can the impact of radioactive waste disposal on the environment be minimized through the use of advanced treatment techniques?
asked
Feb 7
in
Environmental Chemistry
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117
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Determine the standard enthalpy change for the vaporization of 50g of ethyl alcohol (C2H5OH) at its normal boiling point of 78.4°C. Given that the molar heat of vaporization of ethyl alcohol is 38.56 kJ/mol and the molar mass of ethyl alcohol is 46.07 g/mol.
asked
Feb 4
in
Chemical thermodynamics
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109
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What is the specific coordination environment and reaction mechanism of the metal ion in the active site of the metalloenzyme, carbonic anhydrase? Provide a detailed analysis of the coordination bonds formed between the metal ion and amino acid residues within the enzyme.
asked
Jan 31
in
Coordination Chemistry
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92
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What is the optimal polymer carrier for the targeted delivery of a specific drug molecule to a particular site in the body?
asked
Jan 31
in
Polymer Chemistry
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1
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107
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How can the chemical engineer design a system for the production of water-based paints and coatings that meet environmental regulations while still maintaining high performance and durability requirements?
asked
Jan 30
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Chemical engineering
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89
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Calculate the activation energy of a reaction that has a rate constant of 8.23 x 10^-4 s^-1 at 300 K and a rate constant of 1.56 x 10^-2 s^-1 at 350 K.
asked
Jan 23
in
Chemical kinetics
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87
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A copper wire is exposed to a solution containing 0.2 M NaCl. The corrosion rate of the wire is found to be 5.8 microAmp/cm². Calculate the corrosion current density of the copper wire in the given environment.
asked
Jan 22
in
ElectroChemistry
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77
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A chemistry student wants to study the adsorption behavior of a gas on a solid surface. The Langmuir adsorption isotherm experiment is conducted at temperature T. After analyzing the data, the student finds that the maximum adsorption capacity (at saturation) is q moles of the gas per unit area of the solid surface. The student also determines the value of the Langmuir constant K, which is proportional to the affinity of the gas for the surface. Now, the student needs to determine the fraction of the surface that is covered by the gas molecules at a certain pressure P below the saturation
asked
Jan 22
in
Surface Chemistry
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1
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60
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According to Helmholtz's theory of color vision, how does trichromatic color vision work?
asked
Jan 20
in
Psychology
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1
answer
46
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What is the pre-contemplation stage?
asked
Jan 20
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Psychology
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1
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99
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What is the name of the famous obedience experiment conducted in the 1960s?
asked
Jan 20
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Psychology
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1
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38
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How does the Moore's law impact the design of human-machine interfaces?
asked
Jan 20
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Psychology
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1
answer
102
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What is one limitation of using a narrative approach in existential psychology?
asked
Jan 20
in
Psychology
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1
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72
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What is an example of cognitive behavioural therapy in pain management?
asked
Jan 16
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Psychology
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1
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52
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What is a theory about gender typing?
asked
Jan 16
in
Psychology
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