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Answers by EdwardoO6191
0
votes
24
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What is the mechanism of the reaction between a carboxylic acid and an alcohol to form an ester? Provide a step-by-step explanation, including the role of a catalyst if any, and illustrate with the reaction between acetic acid and ethanol.
answered
3 days
ago
in
Organic Chemistry
0
votes
21
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What is the predicted geometry and polarity of the inorganic molecule SF6?
answered
3 days
ago
in
Inorganic Chemistry
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23
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What is the electronic band structure of a graphene sheet using density functional theory calculations and how does it compare to the experimental results?
answered
5 days
ago
in
Computational Chemistry
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votes
8
views
How does the concentration of nitrogen and phosphorus in water bodies affect the growth of Harmful Algal Blooms (HABs) and what are the chemical processes at play?
answered
Feb 19
in
Environmental Chemistry
0
votes
29
views
What type of hybrid orbitals does the carbon atom in methane (CH4) possess?
answered
Feb 18
in
Chemical bonding
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votes
17
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What is the bond angle in a molecule of water (H2O) and how is it predicted based on the theory of valence shell electron pair repulsion (VSEPR) and the hybridization of the atoms involved?
answered
Feb 18
in
Chemical bonding
0
votes
39
views
How does the use of different types of substrates impact the sensitivity and reproducibility of SERS measurements in the analysis of specific analytes?
answered
Feb 17
in
Surface Chemistry
0
votes
41
views
What specific reactants and products are formed in the synthesis reaction between magnesium and oxygen? Provide a balanced chemical equation to support your answer.
answered
Feb 13
in
Chemical reactions
0
votes
42
views
What is the oxidation number of nitrogen in NH4OH?
answered
Feb 13
in
Chemical reactions
0
votes
8
views
How can we design a drug that specifically targets the enzyme responsible for a certain disease state, while avoiding interference with other enzymes or receptors in the body?
answered
Feb 12
in
Medicinal Chemistry
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votes
31
views
How can the sensing and actuating properties of polymer-based sensors be optimized for the detection and measurement of particular analytes, and what are the factors affecting their efficiency and selectivity?
answered
Feb 10
in
Polymer Chemistry
0
votes
43
views
How can the process for the production of a specific food additive be optimized to increase yield and reduce costs while maintaining quality and safety standards?
answered
Feb 10
in
Chemical engineering
0
votes
46
views
How can the principles of quantum mechanics be applied to develop more efficient algorithms for simulating chemical reactions and properties, and how can this knowledge be used to design new drugs and materials with specific properties?
answered
Feb 10
in
Quantum Chemistry
0
votes
35
views
How can the mechanical and thermal properties of polymer-based composites be optimized for use in aerospace applications?
answered
Feb 7
in
Polymer Chemistry
0
votes
38
views
How can the mechanical and chemical properties of biomaterials be optimized for use in tissue engineering applications?
answered
Feb 7
in
Materials Chemistry
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votes
30
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How can instructors in a chemistry classroom provide more effective support for students with learning disabilities to achieve their academic goals in the subject?
answered
Feb 5
in
Chemical education
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votes
37
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How can quantum chemical calculations be effectively used to predict and analyze the strength and nature of non-covalent interactions, such as hydrogen bonding or van der Waals interactions, between molecules in a complex chemical system?
answered
Feb 5
in
Computational Chemistry
0
votes
77
views
How can X-ray fluorescence spectroscopy be utilized to determine the presence and concentration of a specific element in a given sample?
answered
Jan 30
in
Analytical Chemistry
0
votes
74
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Calculate the entropy change (ΔS) for the combustion of methane gas (CH4) at constant pressure and standard conditions, given the following data: C(s) + O2(g) → CO2(g) ΔS° = -394 J/K·mol 2H2(g) + O2(g) → 2H2O(l) ΔS° = -237 J/K·mol CH4(g) + 2O2(g) → CO2(g) + 2H2O(l) ΔH° = -802 kJ/mol
answered
Jan 23
in
Chemical thermodynamics
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votes
65
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Calculate the bond angles and molecular geometry of the methane (CH4) molecule by using quantum chemistry principles.
answered
Jan 23
in
Quantum Chemistry
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