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How does the polarity of a solvent affect the solubility of a substance? Provide specific examples of polar and nonpolar solvents and solutes, and explain the mechanism behind their solubility.
asked
Feb 22
in
Chemical bonding
0
votes
1
answer
32
views
What is the most suitable polymer electrolyte material for use in a lithium-ion battery and why?
asked
Feb 21
in
Polymer Chemistry
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1
answer
30
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What is the effect of temperature and pressure on the adsorption of gases on solid surfaces? Provide mathematical equations and real-life examples to explain your answer.
asked
Feb 19
in
Surface Chemistry
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1
answer
25
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How does the drug-drug interaction between aspirin and warfarin affect blood clotting mechanisms in the body?
asked
Feb 19
in
Medicinal Chemistry
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1
answer
107
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What is the relationship between enantiomers and optical activity in organic chemistry? Please explain with examples of molecules that exhibit chirality and their optical properties.
asked
Feb 13
in
Organic Chemistry
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1
answer
51
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How can we design small molecule drugs targeting specific respiratory disease pathways, such as bronchoconstriction or airway inflammation, using medicinal chemistry approaches?
asked
Feb 12
in
Medicinal Chemistry
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1
answer
102
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How does the electronic band structure of a material change with different dopants, as predicted by Density Functional Theory calculations?
asked
Feb 12
in
Computational Chemistry
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1
answer
51
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How can spectroscopic techniques be used to determine the coordination number and geometry of a transition metal complex? Provide an example of a complex and the corresponding spectroscopic data that can be used to determine its structure.
asked
Feb 5
in
Coordination Chemistry
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votes
1
answer
40
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How can chemical education be redesigned to increase representation and diversity in the chemistry field, and why is diversity important for the advancement of the field?
asked
Feb 4
in
Chemical education
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1
answer
56
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Calculate the vibrational frequencies and infrared spectra for a molecule of carbon dioxide (CO2) using quantum chemistry methods.
asked
Feb 3
in
Quantum Chemistry
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119
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Calculate the standard enthalpy change for the vaporization of 25 grams of water at 100 degrees Celsius and 1 atmosphere of 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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1
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84
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Calculate the standard enthalpy change for the reaction of 2 moles of liquid ethanol (C2H5OH) reacting with 1 mole of gaseous oxygen (O2) to form 2 moles of gaseous carbon dioxide (CO2) and 3 moles of liquid water (H2O) at a temperature of 298K. Assume the reactants and products are at standard state conditions.
asked
Feb 3
in
Chemical thermodynamics
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1
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131
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What is the difference between an alkene and an alkyne in terms of their chemical structure, physical properties, and reactivity? Provide examples of each and explain how their properties impact their use in different industries.
asked
Jan 31
in
Organic Chemistry
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1
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122
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A chemistry student was given a sample of a white crystalline substance, suspected to be a mixture of sodium chloride (NaCl) and potassium chloride (KCl). The student performed an analysis and found that the sample contained 64% chlorine by mass. Calculate the mass percentage of sodium chloride and potassium chloride present in the mixture.
asked
Jan 22
in
Analytical Chemistry
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votes
1
answer
45
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According to Sigmund Freud, how does the unconscious mind influence behaviour?
asked
Jan 20
in
Psychology
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votes
1
answer
71
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Where does the biopsychosocial model of health place emphasis?
asked
Jan 20
in
Psychology
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votes
1
answer
39
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What is positivism?
asked
Jan 16
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Psychology
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1
answer
80
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When is the use of antidepressants not recommended in the treatment of bipolar disorder?
asked
Jan 16
in
Psychology
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votes
1
answer
61
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What is the difference between social learning theory and social cognitive theory?
asked
Jan 14
in
Psychology
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1
answer
38
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What is the difference between a moral and an ethical decision?
asked
Jan 14
in
Psychology
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