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What is the relationship between the molecular structure and the phase behavior of liquid crystal compounds? Provide concrete examples of liquid crystal compounds and how their molecular structure affects their phase behavior.
answered
Feb 24
in
Physical Chemistry
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votes
25
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How does the presence of toxic heavy metal ions like lead or mercury in water affect the survival and reproduction of different species of aquatic organisms, and what are the underlying chemical mechanisms responsible for the observed effects?
answered
Feb 22
in
Environmental Chemistry
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29
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How does the coordination geometry of a transition metal complex affect its electronic and magnetic properties?
answered
Feb 19
in
Quantum Chemistry
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33
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How does temperature affect the rate of enzyme-catalyzed reactions?
answered
Feb 17
in
BioChemistry
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votes
38
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What is the difference between primary, secondary, and tertiary alcohols and how does their chemical reactivity differ? Illustrate your answer with suitable examples.
answered
Feb 14
in
Organic Chemistry
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38
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How can we predict and determine the crystallographic structure of inorganic solids based on their chemical composition and bonding properties?
answered
Feb 14
in
Inorganic Chemistry
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62
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How to design a feasible and economical system that produces pure hydrogen fuel with a high yield while minimizing energy consumption, by utilizing the principles of chemical engineering and taking into account the potential impact on the environment?
answered
Feb 12
in
Chemical engineering
0
votes
128
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Given a sample of mesoporous silica with a surface area of 500 m²/g, an amount of physisorbed nitrogen of 4.2 µmol/g, and assuming a monolayer coverage of 16.2 µmol/m², calculate the BET surface area of the silica.
answered
Feb 4
in
Surface Chemistry
0
votes
80
views
What is the dipole moment of carbon dioxide (CO2) molecule?
answered
Jan 31
in
Chemical bonding
0
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102
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What is the concentration of copper ions (Cu2+) in a sample solution if the absorbance of the solution at a wavelength of 550 nm is 0.45 and the path length of the sample cell is 1 cm? Given that the molar absorptivity of Cu2+ at this wavelength is 1.5 × 10^4 L mol^-1 cm^-1.
answered
Jan 30
in
Analytical Chemistry
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116
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What is the concentration (in moles per liter) of a hydrochloric acid (HCl) solution if 25 mL of the solution reacts with 50 mL of a 0.1 M sodium hydroxide (NaOH) solution during a titration process?
answered
Jan 30
in
Analytical Chemistry
0
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81
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A certain polymerization reaction has a ΔH°rxn of -250 kJ/mol. If you need to make 500 grams of the polymer, how much energy in kilojoules will be released or absorbed during the reaction?
answered
Jan 22
in
ThermoChemistry
0
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66
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According to Erikson's psychosocial theory, what is the final stage of development?
answered
Jan 20
in
Psychology
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votes
70
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When might pharmacological intervention be necessary for treatment of trauma?
answered
Jan 20
in
Psychology
0
votes
93
views
Why did Milgram's obedience study receive criticism?
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Jan 20
in
Psychology
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145
views
How can descriptive statistics provide information about psychological variables?
answered
Jan 17
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Psychology
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votes
127
views
How does biopsychology relate to the study of addiction?
answered
Jan 17
in
Psychology
0
votes
21
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What is the importance of conducting cross-cultural research in psychology?
answered
Jan 16
in
Psychology
0
votes
141
views
How does the social penetration theory explain changes in relationships?
answered
Jan 15
in
Psychology
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41
views
What is the difference between an algorithm and a heuristic?
answered
Jan 14
in
Psychology
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