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1
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What is the effect of varying concentration of reactants on the rate of reaction between hydrochloric acid and sodium thiosulfate?
asked
6 days
ago
in
Chemical kinetics
0
votes
1
answer
25
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What is the effect of temperature on the adsorption of gas molecules on a solid surface? Is the adsorption process exothermic or endothermic? Support your answer with experimental data and a suitable equation.
asked
6 days
ago
in
Physical Chemistry
0
votes
1
answer
27
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What is the mechanism of the Beckmann rearrangement reaction, and what factors influence its rate and selectivity? Provide a detailed explanation and examples of how this reaction can be applied in organic synthesis.
asked
Feb 17
in
Organic Chemistry
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votes
1
answer
8
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How does temperature affect the reaction rate and overall efficiency of the reaction between hydrochloric acid and magnesium ribbon?
asked
Feb 17
in
Chemical kinetics
0
votes
1
answer
41
views
How does limited exposure to current research in chemistry affect the motivation and career decisions of undergraduate chemistry students?
asked
Feb 13
in
Chemical education
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votes
1
answer
36
views
How can the inadequate training of chemistry teachers affect the learning and understanding of fundamental concepts in chemistry among high school students?
asked
Feb 7
in
Chemical education
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votes
1
answer
40
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How can the efficiency of photochemical degradation of pollutants in the environment be improved using different photocatalysts?
asked
Feb 7
in
PhotoChemistry
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votes
1
answer
40
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Determine the bond dissociation energy of methane (CH4) using the following data: Reaction: CH4(g) → C(g) + 4H(g)ΔH°f (kJ/mol): CH4(g) = -74.81C(g) = 715.32H(g) = 218.00Hint: bond dissociation energy can be calculated using the formula ΔH°rxn = Σ (ΔH°f, products) - Σ (ΔH°f, reactants)
asked
Feb 4
in
ThermoChemistry
0
votes
1
answer
61
views
Determine the bond angles in a water molecule using the principles of Quantum Chemistry.
asked
Feb 4
in
Quantum Chemistry
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votes
1
answer
40
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Calculate the standard enthalpy change for the neutralization of hydrochloric acid (HCl) with sodium hydroxide (NaOH) in aqueous solution when 50.0 mL of 0.100 M HCl was used and 75.0 mL of 0.075 M NaOH was added. Assume that the specific heat capacity of the solution is 4.18 J/g·K and the density of the solution is 1.00 g/mL.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
66
views
What is the concentration in molarity of a hydrochloric acid solution if it requires 25 mL of a 0.1 M sodium hydroxide solution to neutralize 20 mL of the acid solution?
asked
Jan 30
in
Analytical Chemistry
0
votes
1
answer
59
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Calculate the enthalpy change for the hydrolysis of 10 grams of sodium acetate (NaOH) at 25°C, given the following information:- The specific heat capacity of the solution is 4.18 J/(g·°C)- The initial temperature of the solution is 25°C- The final temperature of the solution after hydrolysis is 30°C- The heat evolved by the reaction is 677 J.
asked
Jan 23
in
ThermoChemistry
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votes
1
answer
73
views
Assuming a standard hydrogen electrode is used as the reference electrode and a copper electrode is used as the working electrode in an electrochemical cell, calculate the polarization potential when the current density on the copper electrode is 0.5 mA/cm^2 and the concentration of Cu2+ in the solution is 0.1 M.
asked
Jan 22
in
ElectroChemistry
0
votes
1
answer
68
views
Balance this chemical equation for the reaction between potassium permanganate (KMnO4) and sodium sulfite (Na2SO3) in acidic solution:KMnO4 + Na2SO3 + H2SO4 → K2SO4 + MnSO4 + Na2SO4 + H2O
asked
Jan 21
in
Inorganic Chemistry
0
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1
answer
33
views
When was the Rosenhan Experiment conducted?
asked
Jan 20
in
Psychology
0
votes
1
answer
77
views
According to the social learning theory, what is the role of reinforcement in shaping behaviour?
asked
Jan 20
in
Psychology
0
votes
1
answer
84
views
According to the ecological approach to perception, how do we perceive our environment?
asked
Jan 20
in
Psychology
0
votes
1
answer
11
views
According to Jean Piaget's cognitive development theory, how do children learn about the world?
asked
Jan 17
in
Psychology
0
votes
1
answer
60
views
Why might a therapist use rational-emotive behaviour therapy?
asked
Jan 17
in
Psychology
0
votes
1
answer
34
views
How can the peripheral route to persuasion be evaluated?
asked
Jan 16
in
Psychology
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