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0
votes
16
views
How does the size and composition of microplastics affect their toxicity towards marine life?
answered
3 days
ago
in
Environmental Chemistry
0
votes
39
views
How does the concentration of nitrogen and phosphorus affect the growth of harmful algae in aquatic ecosystems, and how can we effectively reduce these nutrient pollutants to improve water quality?
answered
Feb 19
in
Environmental Chemistry
0
votes
34
views
How does the binding of transcription factors to DNA regulate gene expression? Provide an explanation using specific examples.
answered
Feb 17
in
BioChemistry
0
votes
30
views
How does the nitrogen and phosphorus pollution in a water body affect the growth of harmful algal blooms and what is the mechanism behind it?
answered
Feb 14
in
Environmental Chemistry
0
votes
29
views
How do the molecular dynamics simulations of protein-ligand interactions provide insights into the binding mechanism and affinity of different ligands to a specific protein target?
answered
Feb 13
in
Computational Chemistry
0
votes
34
views
How does the nature of the catalyst and the properties of the solid surface affect the rate of a chemical reaction in heterogeneous catalysis?
answered
Feb 13
in
Surface Chemistry
0
votes
42
views
How does electrolyte concentration affect the colloidal stability and coagulation of a gold colloid? Provide experimental evidence to support your answer.
answered
Feb 13
in
Surface Chemistry
0
votes
35
views
How can the surface chemistry of metals be modified to prevent or reduce corrosion and promote passivation?
answered
Feb 11
in
Surface Chemistry
0
votes
29
views
How can technology be effectively integrated into chemistry education to help students better understand complex concepts, without becoming a distraction or hindrance to their learning process?
answered
Feb 6
in
Chemical education
0
votes
31
views
How can chemistry teachers provide adequate support for students with learning disabilities to ensure they have equal opportunities to succeed in the subject?
answered
Feb 6
in
Chemical education
0
votes
32
views
How can chemistry educators improve the emphasis on practical applications of chemistry in the classroom to better prepare students for future careers in the field?
answered
Feb 4
in
Chemical education
0
votes
45
views
Calculate the standard enthalpy change for the reaction: NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l) Given the following information: ΔHf° [NaOH(aq)] = -469.1 kJ/mol ΔHf° [HCl(aq)] = -167.2 kJ/mol ΔHf° [NaCl(aq)] = -407.3 kJ/mol ΔHf° [H2O(l)] = -286 kJ/mol
answered
Feb 3
in
Chemical thermodynamics
0
votes
51
views
How does changing the reaction conditions (e.g. temperature, pressure, solvent) affect the reaction mechanism of a particular chemical reaction? Use quantum chemical calculations to predict the mechanism and compare it to experimental results.
answered
Feb 3
in
Computational Chemistry
0
votes
50
views
How can UV-Vis spectroscopy be used to identify the presence of specific functional groups in a given organic compound? Provide a step-by-step explanation of the process, including the type of functional groups that can be detected and any limitations to the technique. Additionally, provide an example of a compound and its UV-Vis spectrum with annotations identifying the specific functional groups present.
answered
Jan 29
in
Analytical Chemistry
0
votes
67
views
How can the amount of fluoride in a drinking water sample be quantified using potentiometry?
answered
Jan 29
in
Analytical Chemistry
0
votes
60
views
Calculate the enthalpy of ionization of magnesium if 4.8 g of magnesium reacts completely with hydrochloric acid to form 224 mL of hydrogen gas at standard temperature and pressure (STP). The heat released during the reaction is -412 kJ/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
104
views
A student is trying to determine the heat capacity of a substance at constant pressure, given its thermodynamic properties. The substance is in the gas phase and is confined to a container at a specific temperature and pressure. What is the mathematical expression for the heat capacity of the substance in terms of its thermodynamic properties, and what is the numerical value of the heat capacity at the given temperature and pressure? How would the heat capacity change if the temperature or pressure were to be changed?
answered
Jan 22
in
Physical Chemistry
0
votes
42
views
How does stereotype threat impact behaviour?
answered
Jan 20
in
Psychology
0
votes
33
views
What is cultural safety?
answered
Jan 17
in
Psychology
0
votes
33
views
What is the learned helplessness theory?
answered
Jan 16
in
Psychology
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