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0
votes
34
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What is the pH of a solution if the pH meter reading is 7.5 and the temperature of the solution is 25°C?
answered
Feb 22
in
Analytical Chemistry
0
votes
36
views
What is the most effective polymer characterization technique for determining the molecular weight distribution of a polymeric material and how does it work?
answered
Feb 21
in
Polymer Chemistry
0
votes
28
views
What is the hybridization of the carbon atom in the molecule CH4?
answered
Feb 20
in
Chemical bonding
0
votes
12
views
How does the binding of substrates to the active site of an enzyme affect the catalytic reaction rate? Use computational chemistry methods to compare the reaction rate of a free substrate versus a substrate that is bound to the enzyme's active site.
answered
Feb 17
in
Computational Chemistry
0
votes
23
views
How does the binding affinity between a specific protein and its ligand vary with temperature, and how can molecular dynamics simulations be used to predict and understand these changes?
answered
Feb 17
in
Computational Chemistry
0
votes
34
views
What are the best polymer-based adhesives and sealants for bonding and sealing plastics, metals, and ceramics in automotive manufacturing, and what properties of these polymers make them well-suited for this application?
answered
Feb 17
in
Polymer Chemistry
0
votes
31
views
What are the equilibrium concentrations of products and reactants when 0.50 moles of N2 and 0.50 moles of H2 are mixed in a 1.00 L flask and allowed to react at 300 K, with a Kc value of 0.129?
answered
Feb 17
in
Chemical equilibrium
0
votes
63
views
What is the effect of changing the hydrophobic and hydrophilic properties of a surfactant on its ability to form micelles in aqueous solution?
answered
Feb 17
in
Surface Chemistry
0
votes
36
views
How can the medicinal chemistry approach be used to develop new treatments for inflammatory bowel disease? What specific chemical compounds could be targeted to address the inflammation in the gastrointestinal tract and improve patient outcomes?
answered
Feb 10
in
Medicinal Chemistry
0
votes
30
views
How can chemistry educators make the subject more engaging and interesting for students who lack interest in the subject?
answered
Feb 4
in
Chemical education
0
votes
34
views
How can chemistry be effectively communicated to the general public in terms of its importance and impact on society and the economy?
answered
Feb 4
in
Chemical education
0
votes
56
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Calculate the standard enthalpy change for the reaction of the combustion of liquid ethylene glycol $(C_2H_6O_2)$ when 500g of the compound is burned completely with excess oxygen gas, given the enthalpies of formation of $CO_2$ (-393.5 kJ/mol), $H_2O$ (-285.8 kJ/mol), and $C_2H_6O_2$ (-694.3 kJ/mol).
answered
Feb 3
in
Chemical thermodynamics
0
votes
68
views
Calculate the enthalpy change for the process of desorption of carbon dioxide from a zeolite adsorbent at a temperature of 298 K, given that the heat of adsorption for carbon dioxide on the same zeolite at the same temperature is -40 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
35
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A student needs to determine the activation energy for the electrochemical reaction between zinc and copper sulfate using the Arrhenius equation. The student has experimental data that includes the rate constants and temperatures at which the reaction was performed. Using the experimental data, the student needs to calculate the activation energy for the reaction and explain the significance of this value in terms of the reaction kinetics.
answered
Jan 22
in
ElectroChemistry
0
votes
83
views
What is the assumption of the sociobiological theory of conflict?
answered
Jan 20
in
Psychology
0
votes
66
views
Why was the term 'Black' reclaimed by the Black Lives Matter movement?
answered
Jan 20
in
Psychology
0
votes
35
views
What does the direction of the correlation signify?
answered
Jan 20
in
Psychology
0
votes
113
views
What is the criterion of falsifiability in theory evaluation?
answered
Jan 16
in
Psychology
0
votes
82
views
Who developed the cognitive model of panic disorder?
answered
Jan 15
in
Psychology
0
votes
78
views
What is the evidence for the usage-based theory in language development?
answered
Jan 15
in
Psychology
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