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What is the effect of decreasing pH on the equilibrium position of the redox reaction between iodine and thiosulfate in the presence of hydrochloric acid?
asked
Feb 24
in
Chemical equilibrium
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votes
1
answer
32
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What is the optimized conditions for synthesizing polyvinylpyrrolidone from vinylpyrrolidone monomer in terms of temperature, solvent, reaction time, and catalyst concentration?
asked
Feb 22
in
Chemical synthesis
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1
answer
29
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What is the effect of the excitation wavelength on the luminescent properties of a particular fluorescent material?
asked
Feb 20
in
PhotoChemistry
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1
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29
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How does the degree of polymerization affect the thermodynamic behavior and conformational properties of a polymer chain in a Monte Carlo simulation?
asked
Feb 19
in
Computational Chemistry
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39
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How does the absorption of light by a molecule lead to the excited state dynamics and what is the role of ab initio calculations in understanding this process?
asked
Feb 17
in
Computational Chemistry
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1
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46
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What is the boiling point of sodium chloride at a pressure of 1 atm?
asked
Feb 14
in
Inorganic Chemistry
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40
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What are the potential consequences of inadequate preparation for chemistry-related careers? How can this problem be addressed to ensure that chemistry graduates are fully prepared for their chosen career paths?
asked
Feb 14
in
Chemical education
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1
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109
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What is the coordination geometry and oxidation state of the metal ion in the active site of cytochrome c oxidase, an important metalloenzyme involved in the respiratory process of living organisms?
asked
Feb 12
in
Coordination Chemistry
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1
answer
54
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What is the structural difference between cis-platin and trans-platin, and how does this difference affect their biological activity as chemotherapy agents?
asked
Feb 12
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Coordination Chemistry
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1
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68
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How does the structure of chlorophyll impact its ability to absorb light during photosynthesis?
asked
Feb 12
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BioChemistry
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44
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How can the properties of ceramics be tailored to improve their performance in high-temperature applications, such as in gas turbine engines?
asked
Feb 10
in
Materials Chemistry
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1
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36
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How can the electrical conductivity of a polymer-based smart material be improved for better performance in electronic applications?
asked
Feb 7
in
Polymer Chemistry
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1
answer
40
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Consider the molecule ozone (O3). Draw all possible resonance structures for ozone and explain how the resonance helps to stabilize the molecule.
asked
Feb 3
in
Chemical bonding
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1
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58
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Analyzing the effects of molecular weight and temperature on the flow behavior and viscosity of polymer melts using rheological measurements: a comparative study between polyethylene and polypropylene melts.
asked
Jan 22
in
Polymer Chemistry
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117
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A chemistry student is given a sample of an unknown salt consisting of a mixture of two compounds. The student is asked to determine the percentage composition of each compound in the salt using mass balance calculations. The total mass of the sample is 10 grams, and after performing careful analysis, the student obtains the following data: One compound has a molar mass of 80 g/mol and comprises 60% of the total mass of the salt. The other compound has a molar mass of 120 g/mol and comprises 40% of the total mass of the salt. What are the percentage compositions of each compound in the salt?
asked
Jan 22
in
Analytical Chemistry
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1
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76
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Where are the visual field defects commonly found in patients with macular degeneration?
asked
Jan 20
in
Psychology
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1
answer
45
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According to Erikson's psychosocial theory, what is the crisis during the adolescence stage?
asked
Jan 20
in
Psychology
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1
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67
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What is gender fluidity and how does it relate to gender psychology?
asked
Jan 17
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Psychology
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1
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40
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What are the similarities between Bandura's social learning theory and Skinner's behaviourism?
asked
Jan 17
in
Psychology
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1
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44
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When evaluating the theories of social influence, what is the door-in-the-face technique?
asked
Jan 16
in
Psychology
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