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 LinetteWaldo
Wall
Recent activity
All questions
All answers
Ask a Question
Questions by LinetteWaldo
0
votes
1
answer
18
views
What is the resonance structure of benzene and how does it contribute to its stability?
asked
1 day
ago
in
Organic Chemistry
0
votes
1
answer
16
views
What is the effect of varying the concentration of reactants on the rate of a chemical reaction for the reaction between magnesium and hydrochloric acid, when the stoichiometry of the reaction is changed by altering the amount of magnesium used?
asked
3 days
ago
in
Chemical kinetics
0
votes
1
answer
14
views
What is the optimal reaction conditions (temperature, pressure, and concentration) for the preparation of phenylalanine from benzyl chloride and ammonia, and how do these conditions affect the yield and purity of the final product?
asked
3 days
ago
in
Chemical synthesis
0
votes
1
answer
25
views
What is the optimum temperature and concentration of initiator for the synthesis of high molecular weight polyacrylonitrile from acrylonitrile monomer, and what effect does changing these parameters have on the yield and properties of the polymer?
asked
4 days
ago
in
Chemical synthesis
0
votes
1
answer
19
views
What is the most efficient method for preparing p-nitroaniline from aniline and nitric acid, and what factors affect the yield and purity of the final product?
asked
4 days
ago
in
Chemical synthesis
0
votes
1
answer
26
views
What is the activation energy of the reaction between hydrogen peroxide and iodide ions, given that the rate constant at 25°C is 0.068 s^-1 and the activation energy is 75 kJ/mol?
asked
Feb 17
in
Chemical kinetics
0
votes
1
answer
31
views
How can the synthesis process of carbon nanotubes be optimized for large-scale production with improved structural and electrical properties?
asked
Feb 14
in
Materials Chemistry
0
votes
1
answer
49
views
How can the synthesis of high molecular weight polystyrene with a specific degree of polymerization be optimized using varying reaction parameters (e.g. temperature, initiator concentration, monomer feed rate)?
asked
Feb 11
in
Chemical synthesis
0
votes
1
answer
45
views
How can the properties of polymer-based coatings and paints be optimized for better adhesion and corrosion resistance on metal surfaces in harsh environments?
asked
Feb 10
in
Polymer Chemistry
0
votes
1
answer
31
views
How can the mechanical and thermal properties of polymer-based composites be optimized for their efficient use in aerospace applications?
asked
Feb 7
in
Polymer Chemistry
0
votes
1
answer
40
views
How can Chemistry teachers effectively integrate technology into their classroom to enhance student understanding and engagement with difficult concepts, such as stoichiometry or thermodynamics?
asked
Feb 5
in
Chemical education
0
votes
1
answer
33
views
Calculate the standard enthalpy change for the sublimation of iodine (I2) using the given information: The standard enthalpy of fusion of iodine is 15.52 kJ/mol and the standard enthalpy of vaporization of iodine is 41.57 kJ/mol.
asked
Feb 3
in
Chemical thermodynamics
0
votes
1
answer
45
views
Calculate the enthalpy of formation of carbon dioxide given the following data:C(s) + O2(g) → CO2(g) ΔH° = -393.5 kJ/molC(s) + 2H2(g) → CH4(g) ΔH° = -74.8 kJ/mol2H2(g) + O2(g) → 2H2O(l) ΔH° = -571.6 kJ/mol
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
45
views
Calculate the enthalpy change of polymerization for the formation of polystyrene from its monomer, styrene, given the following data:- ΔH°f (Styrene) = -25.68 kJ/mol- Bond enthalpies: C-C = 347 kJ/mol; C=C = 611 kJ/mol; C-H = 413 kJ/mol
asked
Jan 23
in
ThermoChemistry
0
votes
1
answer
50
views
What is the difference between empathy and sympathy in counselling?
asked
Jan 20
in
Psychology
0
votes
1
answer
34
views
When was the Ultimatum Game experiment conducted?
asked
Jan 20
in
Psychology
0
votes
1
answer
9
views
Where can ANOVA be used in psychology research?
asked
Jan 17
in
Psychology
0
votes
1
answer
11
views
According to the self-regulation theory, how do people regulate their emotions after trauma?
asked
Jan 17
in
Psychology
0
votes
1
answer
23
views
How can the developmental systems theory be evaluated?
asked
Jan 16
in
Psychology
0
votes
1
answer
11
views
What are some ethical considerations when conducting research in indigenous psychology?
asked
Jan 16
in
Psychology
Page:
1
2
next »
35.9k
questions
35.7k
answers
2
comments
7.1k
users
Categories
All categories
Science
(12.0k)
Psychology
(10.5k)
Chemistry
(13.4k)
Welcome to Sarvan Science Q&A, where you can ask questions and receive answers from other members of the community.
...