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User DanielleVanw
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Recent activity by DanielleVanw
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What is the effect of increasing pressure on the rate of the reaction between hydrochloric acid and sodium thiosulfate?
asked
3 days
ago
in
Chemical kinetics
1
answer
28
views
How does the polarity of the solvent affect the rate of the photochemical reaction for a specific light-sensitive compound?
asked
3 days
ago
in
PhotoChemistry
1
answer
23
views
What is the difference between an aldehyde and a ketone, and how is this difference reflected in their physical and chemical properties? Provide examples of each compound and explain how their functional groups impact their reactivity.
answered
4 days
ago
in
Organic Chemistry
1
answer
23
views
What is the heat of formation of water (H2O) at standard conditions (25°C and 1 atm pressure) if the enthalpy change of the reaction 2H2(g) + O2(g) → 2H2O(l) is -484 kJ/mol?
answered
5 days
ago
in
Chemical bonding
1
answer
25
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Sure, here's a question for the student to solve: What is the general formula for alkanes and cycloalkanes, and how do their physical properties differ? Provide a specific example of each and compare their boiling points.
answered
5 days
ago
in
Organic Chemistry
1
answer
29
views
What is the effect of changing the concentration of a soluble inorganic salt (e.g. NaCl) on its electrical conductivity?
asked
5 days
ago
in
Inorganic Chemistry
1
answer
26
views
What is the effect of varying ratios of metals in an alloy on its strength and ductility, and which alloy composition would be most suitable for use in high-stress aerospace applications?
answered
5 days
ago
in
Materials Chemistry
1
answer
32
views
What is the coordination environment of the metal center in the active site of the metalloenzyme carbonic anhydrase and how does this environment contribute to the enzyme's function in the reversible hydration of carbon dioxide?
asked
6 days
ago
in
Coordination Chemistry
1
answer
28
views
What is the effect of the central metal ion on the spectroscopic properties of metalloporphyrins and metallophthalocyanines? Provide experimental evidence to support your answer.
answered
Feb 18
in
Coordination Chemistry
1
answer
31
views
What is the balanced equation for the oxidation of 2-methyl-1-propanol to form 2-methyl-1-propanal using potassium dichromate as the oxidizing agent? Also, calculate the mass of potassium dichromate required to oxidize 5.6 g of 2-methyl-1-propanol.
asked
Feb 17
in
Organic Chemistry
1
answer
20
views
What is the effect of pH on the activity of the enzyme invertase in breaking down sucrose into glucose and fructose?
answered
Feb 17
in
BioChemistry
1
answer
28
views
How does the presence of metallic nanoparticles enhance the Raman signal in Surface-enhanced Raman spectroscopy (SERS) and what factors influence the enhancement efficiency?
answered
Feb 17
in
Surface Chemistry
1
answer
28
views
What is the effect of increasing temperature on the rate of reaction between sulfuric acid and magnesium metal?
asked
Feb 13
in
Chemical kinetics
1
answer
38
views
What is the oxidation state of the sulfur atom in H2SO4?
asked
Feb 13
in
Chemical reactions
1
answer
39
views
What are the electrical properties of graphene, and how can they be optimized for use in high-performance electronic devices?
answered
Feb 13
in
Materials Chemistry
1
answer
42
views
What is the total number of ATP molecules generated per glucose molecule during Citric acid cycle and oxidative phosphorylation?
answered
Feb 13
in
BioChemistry
1
answer
30
views
How can we design an efficient industrial waste treatment system that minimizes the environmental impact of hazardous waste disposal and meets regulatory standards?
asked
Feb 12
in
Environmental Chemistry
1
answer
9
views
How can the synthesis of new materials be optimized to enhance their ability to effectively remove contaminants from water sources?
answered
Feb 11
in
Materials Chemistry
1
answer
38
views
How can the synthesis and characterization of new materials for use in fuel cells be optimized to improve the efficiency and durability of fuel cell technology?
answered
Feb 11
in
Materials Chemistry
1
answer
41
views
How can the stability of a colloidal solution be affected by changing the pH of the system?
answered
Feb 10
in
Surface Chemistry
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