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0
votes
1
answer
31
views
What is the effect of changing pH on the rate of reaction between hydrochloric acid and magnesium ribbon?
asked
Feb 22
in
Chemical kinetics
0
votes
1
answer
32
views
How do the photochemical properties of metal nanoparticles differ from those of semiconductor nanoparticles, and how can these differences be attributed to their electronic structures?
asked
Feb 22
in
PhotoChemistry
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votes
1
answer
28
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What is the effect of temperature on the adsorption of gases on solid surfaces? Explain with the help of an experiment.
asked
Feb 19
in
Surface Chemistry
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votes
1
answer
39
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How can we predict the 3D structure of a molecule and its properties, such as reactivity and stability, using computational chemistry tools and molecular modeling techniques?
asked
Feb 14
in
Physical Chemistry
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votes
1
answer
65
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How can the process of producing polymers be optimized to increase production efficiency without compromising the quality of the final product?
asked
Feb 10
in
Chemical engineering
0
votes
1
answer
31
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Design a process for the large-scale production of hydrogen peroxide with high purity and yield, taking into consideration the environmental and economic factors.
asked
Feb 4
in
Chemical engineering
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votes
1
answer
87
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Design a distillation column for the separation of a mixture containing 35% Ethanol and 65% Water. Calculate the number of theoretical plates required for the separation if the column operates at a pressure of 1 atm and a reflux ratio of 1.5.
asked
Feb 3
in
Chemical engineering
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1
answer
136
views
Calculate the standard enthalpy change for the phase transition reaction where 100.0 grams of solid water (ice) at -10.0 °C is heated to form 100.0 grams of liquid water at 10.0 °C, given the specific heat capacities of ice and water are 2.09 J/g·°C and 4.18 J/g·°C, respectively, and the enthalpy of fusion of water is 6.01 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
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votes
1
answer
108
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.
asked
Feb 3
in
Computational Chemistry
0
votes
1
answer
67
views
Calculate the equilibrium constant (K$\textsubscript{a}$) for the reaction of acetic acid in aqueous solution if the pH of the solution is 4.76 and the concentration of acetic acid is 0.1 M.
asked
Jan 23
in
Chemical equilibrium
0
votes
1
answer
53
views
Calculate the energy required to break a carbon-carbon single bond (C-C) with a bond length of 1.54 Å using the average bond-dissociation energy of 347 kJ/mol for this type of bond.
asked
Jan 23
in
Chemical reactions
0
votes
1
answer
99
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A chemistry student wants to create a buffer solution with a pH of 7.2 using acetic acid and sodium acetate. The student has calculated that they need 0.1 moles of each component to make a 250 mL buffer solution. However, the student accidentally added 0.02 moles of hydrochloric acid to the buffer solution. Calculate the new pH of the buffer solution and explain if the addition of the hydrochloric acid has shifted the equilibrium position of the reaction towards the acid or the base.
asked
Jan 22
in
Chemical equilibrium
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votes
1
answer
49
views
What was the main finding of the Stanford Prison Experiment?
asked
Jan 20
in
Psychology
0
votes
1
answer
84
views
Who introduced the concept of the confirmation bias?
asked
Jan 20
in
Psychology
0
votes
1
answer
85
views
According to cognitive dissonance theory, what is the role of justification in reducing dissonance?
asked
Jan 20
in
Psychology
0
votes
1
answer
93
views
How does intersectionality help us understand social erasure?
asked
Jan 17
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Psychology
0
votes
1
answer
93
views
Please compare Erikson's theory versus Karen Horney's theory of personality development.
asked
Jan 17
in
Psychology
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votes
1
answer
66
views
Where might publication bias occur?
asked
Jan 16
in
Psychology
0
votes
1
answer
59
views
According to the behavioural theory of anxiety, why do people develop anxiety disorders?
asked
Jan 15
in
Psychology
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votes
1
answer
70
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What is Erikson's theory of psychosocial development?
asked
Jan 14
in
Psychology
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