Login
Remember
Register
Science Q&A Sarvan.Net
All Activity
Q&A
Questions
Hot!
Unanswered
Tags
Categories
Users
Ask a Question
About Us
XML Sitemap
Terms of Service
User EdwardoO6191
Wall
Recent activity
All questions
All answers
Ask a Question
Recent activity by EdwardoO6191
1
answer
36
views
How does the change in pH affect the rate of reaction between hydrogen peroxide and iodide ion?
asked
Feb 22
in
Chemical kinetics
1
answer
27
views
How does the particle size of nanomaterials affect their catalytic properties?
answered
Feb 22
in
Materials Chemistry
1
answer
22
views
What is the most efficient catalyst for the esterification reaction in the process of producing biofuels from vegetable oils?
answered
Feb 21
in
Chemical engineering
1
answer
29
views
How do the mechanical properties of biodegradable polymer coatings affect the performance and lifespan of medical implants such as heart stents under various stress conditions?
answered
Feb 20
in
Materials Chemistry
1
answer
30
views
What is the correlation between the electronic and optical properties of conjugated polymers and their molecular structure, specifically the length of the conjugated backbone?
answered
Feb 20
in
Quantum Chemistry
1
answer
35
views
How does the deficiency of the enzyme phenylalanine hydroxylase affect the biosynthesis of amino acids in human metabolism, and what are the potential health consequences of this deficiency?
asked
Feb 19
in
BioChemistry
1
answer
36
views
How does the composition of a cell membrane affect its permeability to different molecules? Provide a detailed explanation with specific examples.
asked
Feb 18
in
BioChemistry
1
answer
38
views
What is the bond dissociation energy of a hydrogen molecule (H2)? Provide the chemical equation for breaking the bond and explain the meaning of the bond dissociation energy value.
answered
Feb 18
in
Chemical bonding
1
answer
28
views
How does the binding affinity between proteins affect the stability of protein complexes?
asked
Feb 17
in
BioChemistry
1
answer
28
views
What is the balanced equation for the synthesis reaction between magnesium and oxygen?
answered
Feb 17
in
Chemical reactions
1
answer
33
views
What are the photochemical properties and mechanisms behind the effectiveness of various sunscreen agents, and how do these properties prevent UV radiation from damaging the skin?
answered
Feb 14
in
PhotoChemistry
1
answer
70
views
What is the effect of ligand substitution on the photochemical properties of lanthanide complexes?
asked
Feb 13
in
PhotoChemistry
1
answer
50
views
What is the effect of incorporating graphene oxide on the mechanical properties of polyethylene-based nanocomposites?
answered
Feb 13
in
Polymer Chemistry
1
answer
44
views
How can we design drugs that specifically target cancer cells without damaging healthy cells?
asked
Feb 12
in
Medicinal Chemistry
1
answer
48
views
What is the current density in an electrochemical cell with a copper electrode and a zinc electrode if the current produced by the cell is 0.5 A and the surface area of the copper electrode is 10 cm² while the surface area of the zinc electrode is 5 cm²?
asked
Feb 12
in
ElectroChemistry
1
answer
41
views
How can the mechanical and thermal properties of polymer-based composites be optimized for specific aerospace applications such as aircraft components or spacecraft structures?
answered
Feb 7
in
Polymer Chemistry
1
answer
35
views
How can p-nitroaniline be prepared from aniline and nitric acid using a specific procedure? What are the required materials and conditions for the reaction, and what is the mechanism of the reaction? How can the purity and yield of the product be determined and optimized?
asked
Feb 5
in
Chemical synthesis
1
answer
40
views
How can chemistry educators increase the relevance and visibility of chemistry in daily life to engage students and improve their understanding of the subject?
asked
Feb 4
in
Chemical education
1
answer
40
views
How can a heat exchanger be designed for a specific industrial process involving the heating and cooling of a liquid stream with a flow rate of 500L/min and a specific heat capacity of 4.2 kJ/kg K? The temperature of the hot and cold streams are 120°C and 25°C respectively, and the process requires a heat transfer rate of at least 200 kW. What should be the surface area and overall heat transfer coefficient of the heat exchanger to meet the process requirements?
answered
Feb 4
in
Chemical engineering
1
answer
66
views
Calculate the standard Gibbs free energy change ($\Delta G^{\circ}$) for the following reaction at 298 K:2Fe(s) + 3/2O2(g) → Fe2O3(s) Given: Standard enthalpy of formation of Fe2O3(s) = -822.2 kJ/molStandard enthalpy of formation of Fe(s) = 0 kJ/molStandard entropy change for the reaction = +87.4 J/mol K
answered
Feb 3
in
Chemical thermodynamics
37.4k
questions
37.2k
answers
2
comments
14.6k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(14.9k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...