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User ArnoldJanous
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19
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How does changing the concentration of reactants affect the rate of the chemical reaction between potassium permanganate and oxalic acid?
answered
3 days
ago
in
Chemical kinetics
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votes
6
views
How does the prediction of chemical reactivity and selectivity help in designing more efficient and selective chemical reactions?
answered
3 days
ago
in
Quantum Chemistry
0
votes
24
views
What is the optimal reaction temperature and catalyst concentration for the synthesis of polyacrylonitrile from acrylonitrile monomer using ammonium persulfate as the initiator?
answered
4 days
ago
in
Chemical synthesis
0
votes
25
views
What is the effect of pH on the electrokinetic potential of colloidal silica particles in aqueous solution?
answered
6 days
ago
in
Surface Chemistry
0
votes
27
views
What is the impact of supramolecular assemblies on the photochemical properties of organic molecules?
answered
Feb 17
in
PhotoChemistry
0
votes
51
views
How do different metabolites of a specific drug affect its potency and toxicity in the body, and how can medicinal chemists use this information to optimize drug design and minimize unwanted side effects?
answered
Feb 12
in
Medicinal Chemistry
0
votes
30
views
How can the design of a treatment system for industrial wastewater mitigate the environmental impact of harmful chemicals used in the manufacturing process?
answered
Feb 7
in
Chemical engineering
0
votes
35
views
How does changing the pH of a solution affect the equilibrium position of a redox reaction between copper and silver ions? Provide a detailed explanation with chemical equations and the relevant equilibrium constants.
answered
Feb 3
in
Chemical equilibrium
0
votes
79
views
What is the effect of increased surface area on the reaction rate of magnesium with hydrochloric acid?
answered
Jan 31
in
Chemical kinetics
0
votes
62
views
What are some effective ways for chemistry students to enhance their preparation for chemistry-related careers, and how can instructors better equip them for success in these fields?
answered
Jan 30
in
Chemical education
0
votes
54
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Calculate the activation energy required for a chemical reaction to occur, given that the rate constant at 298 K is 4.70 x 10^-3 s^-1 and the rate constant at 313 K is 1.20 x 10^-2 s^-1. (Assume the Arrhenius equation applies.)
answered
Jan 23
in
Chemical reactions
0
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103
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A laboratory made a buffer solution by mixing 25 mL of 0.10 M acetic acid (Ka = 1.8 x 10^-5) with 15 mL of 0.20 M sodium acetate solution. Calculate the pH of the buffer solution assuming both the acid and the acetate ions are completely dissociated.
answered
Jan 22
in
Chemical reactions
0
votes
57
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A chemistry experiment was conducted to determine the rate constant for the reaction between hydrogen peroxide and iodide ion in acidic medium. The initial concentrations of hydrogen peroxide and iodide ion were 0.2 M and 0.1 M respectively. The reaction was carried out at 25°C and the time taken for the completion of the reaction was 60 seconds. Based on these data, what is the rate constant for the reaction?
answered
Jan 22
in
Chemical kinetics
0
votes
73
views
Name the following organic compound: CH3CH2CH2OH
answered
Jan 21
in
Organic Chemistry
0
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45
views
According to the reward pathway theory, what is the role of dopamine in addiction?
answered
Jan 20
in
Psychology
0
votes
84
views
According to the emotion regulation theory, what is the relationship between emotional regulation and anxiety?
answered
Jan 17
in
Psychology
0
votes
66
views
What is the difference between a one-tailed hypothesis and a two-tailed hypothesis?
answered
Jan 17
in
Psychology
0
votes
28
views
According to the social exchange theory, what motivates individuals in social interactions?
answered
Jan 16
in
Psychology
0
votes
49
views
What does the term 'social constructionism' mean?
answered
Jan 15
in
Psychology
0
votes
35
views
What is ethology in animal psychology?
answered
Jan 13
in
Psychology
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