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0
votes
23
views
What is the effect of temperature on the reaction rate and safety of the reaction between hydrochloric acid and sodium thiosulphate?
answered
3 days
ago
in
Chemical kinetics
0
votes
21
views
What is the mechanism of the reaction between acyl chloride and an alcohol to form an ester in the presence of a Lewis Acid? Provide the step-by-step process with relevant chemical equations and explain the role of the Lewis Acid in the reaction.
answered
3 days
ago
in
Organic Chemistry
0
votes
27
views
How does the presence of heavy metals, such as iron and aluminum, in acid mine drainage affect the acidity and overall water quality of surrounding bodies of water, and what steps can be taken to mitigate these impacts?
answered
3 days
ago
in
Environmental Chemistry
0
votes
27
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How does the pH of a colloidal solution affect the stability and coagulation of the colloids? Investigate and explain the behavior of different types of colloids under varying pH conditions.
answered
4 days
ago
in
Surface Chemistry
0
votes
19
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What is the effect of particle size on the surface structure and reactivity of copper nanoparticles?
answered
4 days
ago
in
Computational Chemistry
0
votes
4
views
What is the most effective method for removing lead (Pb) contamination from soil in a residential area and how does it impact the surrounding environment?
answered
4 days
ago
in
Environmental Chemistry
0
votes
22
views
What is the molecular orbital diagram and electronic structure of a nitrogen molecule (N2)?
answered
4 days
ago
in
Quantum Chemistry
0
votes
23
views
How does the initial concentration of the reactants affect the reaction rate in the chemical reaction between hydrochloric acid and magnesium?
answered
5 days
ago
in
Chemical kinetics
0
votes
25
views
What is the impact of temperature on the surface tension of water and how can it be measured experimentally using a capillary tube and a balance?
answered
5 days
ago
in
Surface Chemistry
0
votes
16
views
What is the equilibrium constant expression for the following redox reaction at standard conditions: Fe2+(aq) + Cu(s) ⇌ Fe3+(aq) + Cu2+(aq)
answered
5 days
ago
in
Chemical equilibrium
0
votes
18
views
What is the effect of temperature and pressure on the adsorption of gases on solid surfaces? Provide a detailed explanation with examples from experimental data.
answered
Feb 17
in
Surface Chemistry
0
votes
22
views
How can we use polymer-based drug delivery systems to improve the efficacy and safety of cancer chemotherapy drugs?
answered
Feb 14
in
Polymer Chemistry
0
votes
36
views
How does the electronic structure of a crystal of gold differ from that of a crystal of silver, as determined using density functional theory calculations?
answered
Feb 12
in
Computational Chemistry
0
votes
40
views
What is the effect of decreasing pH on the equilibrium position of a weak acid-base reaction? Provide an example equation to support your answer.
answered
Feb 12
in
Chemical equilibrium
0
votes
50
views
Calculate the enthalpy change when 50 mL of water at 20°C is mixed with 30 mL of ethanol at 30°C. The specific heat capacity of water is 4.18 J g^-1 °C^-1, the specific heat capacity of ethanol is 2.44 J g^-1 °C^-1, and the density of both water and ethanol are 1 g/mL. Assume that the final mixture is at a uniform temperature.
answered
Jan 23
in
ThermoChemistry
0
votes
59
views
Calculate the enthalpy change for the reaction of 2.5 g of hydrogen gas with excess oxygen gas to produce water, given that the enthalpy of formation of water is -285.83 kJ/mol and the molar mass of hydrogen gas is 2.02 g/mol.
answered
Jan 23
in
ThermoChemistry
0
votes
66
views
According to the biological theory, what is the role of the hypothalamic-pituitary-adrenal axis in anxiety?
answered
Jan 17
in
Psychology
0
votes
48
views
Where is the biopsychosocial model used in clinical psychology?
answered
Jan 16
in
Psychology
0
votes
29
views
Where does the cognitive-behavioural theory of sexuality focus?
answered
Jan 15
in
Psychology
0
votes
37
views
According to the scientific realism philosophy, what is the ultimate goal of science?
answered
Jan 15
in
Psychology
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