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Sure, here's a question for the student to solve: What is the general formula for alkanes and cycloalkanes, and how do their physical properties differ? Provide a specific example of each and compare their boiling points.
answered
Feb 20
in
Organic Chemistry
0
votes
35
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What is the effect of different light intensities on the reaction rate of the photochemical decomposition of hydrogen peroxide?
answered
Feb 19
in
Chemical kinetics
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33
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What is the coordination number of the metal ion in the active site of the enzyme carbonic anhydrase, and how does it affect the enzyme's catalytic activity?
answered
Feb 19
in
Coordination Chemistry
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27
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What is the bond dissociation energy (in kJ/mol) of the H-H bond in H2 molecule if it requires 436 kJ/mol of energy to break one mole of H2 into individual H atoms?
answered
Feb 18
in
Chemical bonding
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votes
58
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What is the oxidation state of sulfur in H2SO4 and how does it change during the reaction with Fe? Write the balanced chemical equation for the redox reaction and identify which species is being oxidized and which one is being reduced.
answered
Feb 13
in
Chemical reactions
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60
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How can we improve the efficiency of polymer-based membranes for water treatment through modification of their surface properties?
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Feb 13
in
Polymer Chemistry
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80
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What is the rate constant for the reaction: A + B → C if the concentration of A is 0.1 M, B is 0.2 M, and the initial rate of formation of C is 2.5 x 10^-3 M/s? (Assume the reaction follows first-order kinetics with respect to both A and B.)
answered
Feb 13
in
Chemical kinetics
0
votes
73
views
What is the mechanism of esterification for the synthesis of an ester from a carboxylic acid and an alcohol? Provide a step-by-step explanation of the reaction and include all necessary reagents and conditions.
answered
Feb 13
in
Organic Chemistry
0
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63
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How can the surface modification of biomaterials using plasma treatment enhance biocompatibility and reduce bacterial adhesion?
answered
Feb 11
in
Surface Chemistry
0
votes
54
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How can the process of producing specialty chemicals be optimized to minimize waste and maximize yield?
answered
Feb 10
in
Chemical engineering
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115
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How does the reaction mechanism for the decomposition of hydrogen peroxide differ in the presence of a catalyst compared to the absence of a catalyst? Use quantum chemical calculations to compare the activation energy and reaction rate for both cases.
answered
Jan 31
in
Computational Chemistry
0
votes
109
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How does the pH value of water bodies affected by acid rain change over time, and how does this impact the aquatic life inhabiting those water bodies?
answered
Jan 30
in
Environmental Chemistry
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70
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How can the composition of a mineral sample be analyzed using X-ray diffraction to determine its crystal structure and chemical composition?
answered
Jan 29
in
Analytical Chemistry
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79
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Calculate the heat released when 1 mole of ethane (C2H6) is combusted in oxygen gas to form carbon dioxide and water, given the following enthalpy of combustion values: ΔH°comb(C2H6) = -1560 kJ/mol ΔH°comb(O2) = -393.5 kJ/mol ΔH°f(CO2) = -393.5 kJ/mol ΔH°f(H2O) = -285.8 kJ/mol
answered
Jan 23
in
ThermoChemistry
0
votes
89
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How does the mere exposure effect influence preferences?
answered
Jan 20
in
Psychology
0
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39
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Why did Skinner argue against the use of introspection?
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Jan 20
in
Psychology
0
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51
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Who proposed the idea of learned helplessness?
answered
Jan 16
in
Psychology
0
votes
81
views
What is the sociohistorical context of middle adulthood?
answered
Jan 14
in
Psychology
0
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69
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X and y are the labels of what specialized human chromosomes?
answered
Jan 8
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Science
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113
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What type of energy is required in all chemical reactions?
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Jan 8
in
Science
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